Solar Eclipse

So T is over in WA to see the total solar eclipse in or near to Exmouth.  Locally we get the partial (21%) eclipse version.

Time to bring out the solar projector box again.

...or, it would have been, but this is Melbourne and at about 1230 a high cloud cover rolled in.  

So all the ideas of getting a pic of the full solar disc, the start of the partial eclipse, and then another at the full 21% went right out the window.

So yeah.

Anyway, here's a photo from T of the total eclipse.

Beautiful.

Next Australian Total Eclipse is July 22nd, 2028 and it rolls right across Central NSW and Sydney.  Time to star planning for that.

The Green Comet - C2022/E3 (ZTF)

 Well, barely.

So it was above the horizon only after February 7th (Tues).  I had busy evenings until Saturday the 11th, and it was a beautiful clear day... right up until 2130 just as it got dark enough to get outside and have a look!  Curse you Melbourne skies!!!

Sunday was also cloudy. 

Finally Monday night (the 13th) was clear enough to see that part of the sky, and I just made the time to go out and have a look.

After a study of Stellarium, I confirmed it should be about 2/3rds between Antares and Mars, just a fraction higher than a line between the two.

It took a while... and another look at Stellarium to check... I finally saw a smear, a faint blur, the barest wisp of light only just brighter than the sky behind it.  Almost lost in the light pollution of the sky above Lalor.

I first found it in the 25mm, and then worked up through the 17mm and the 13mm.

This wasn't a moment of "Yay! A majestic comet!", this was "Hey, I found it! That was ridiculous!"

There was no hope of trying to image it with my simple mobile phone setup, so I'll just have to remember the thrill of finding that smudgy, faint, blur.   

Happy New Year! Lets get the scope out a bit more often!

 2023 - a brand new year.  

Not much for NY resolutions, but will try to get Dobby the house scope out more often this year.

Started with NYE/NYD - enjoying a good look at the Pleiades, Jupiter, Mars, and the Moon.

Used the new mobile-camera eyepiece mount and took a few photos and tried some videos to see if a frame capture got a good shot.  

Took some stunning videos of the moon.  Waxing gibeous, the terminator looked amazing.  Mountains and craters throwing fantastic shadows.

Jupiter was bright and three Galilean were clear.  As always, Jupiter's bands washed out in the photos when including the moons, but with the Moon Filter I was able to image the rings in some of the best shots I think I've ever taken of Jupiter.

Mars was very bright and a large disk in the eyepiece.  Very hard to make out any surface markings though.  I got an impression of the darker areas, but not clearly.

The bright moon washed out a lot of the nebulocity (name drop!) of the Pleiades, but as a jewel-box of stars it always satisfies.  I tried a few photos, but its not possible to have a long enough exposure to be more than a few points of the brighter stars.

I was still looking through the scope as the fireworks went off around the suburb.  Happy New Year!  A great way to see in 2023.

     

Tango Delta - Perseverance sticks the landing!!!

Another Skycrane 11 minutes of terror!

Working from home that day, so I got to watch the landing live stream from NASA that morning before picking up the kids for the school drop.

Watching the mission operators sweat out the landing, and the poor bloke they had providing the commentary was fun and moving. These people had a lot invested, so seeing their joy when the lander sent back each successive completed phase was great. I punched the air with them when the call of "Tango Delta" was announced.

Very quickly the first image from the Nav Cam came through, which was greyscale, blurry, dusty and completely awesome.

A few days later and there is HD video of the landing from parachute to touchdown. This is amazing. My mind is blown. The initial mastcam panorama is incredible as well. High def and crisp.

They even recorded a gust of wind blowing over the rover while it buzzed and whirred. It's not much...but that's what it is like there.

The only thing missing now is the smell... What does Mars smell like? Probably like Broken Hill...

Hope successful

February and the Mars missions are arriving. First is Hope from the UAE.

They've successfully decelerated into orbit and are starting their science. That's cool.

I'll also mention the Chinese mission, which I haven't heard much about at all. I think it's OK. Need to check.

2020 A retrospective.

Dayamn! That was a whole thing...
No. Just...no. Moving on


Anyway, didn't do much. Looked at the moon a few times.
T and I mentioned trying a dark sky night once, but didn't follow through... coz covid.

Betelgeuse didn't blow. It was probably a spurt of dust. I think a cooling cloud of blown off atmosphere is the current best hypothesis.

SpaceX was exciting during the year. Unmanned and manned Dragon missions to the ISS.

At the end of the year a barrage of missions took off for Mars. UAE sent an orbiter, China has a orbiter/lander mission, and NASA is the big one with Mars2020 landing Perseverance and Intrepid.

Betelgeuse

Finally a nice clear night. Orion is high in the sky and there is no moon up yet.

Betelgeuse is dim. Really dim. It's strange.

By eye, Betelgeuse is about the same magnitude as Bellatrix beside it, or Saiph above it. Very odd.

Now I've just read of LIGO detecting gravity waves from the area of Betelgeuse. Further reading seems to indicate that it may be just coincidence. The readings may be just from a similar region and not Betelgeuse itself.

Some very interesting stuff going on.

2019

A quiet year for my amateur astronomy.

Tried a few dark sky trip arrangements, but got rained out - of course.

Updated my mobile phone caddy, and made it better but still not great. 

Pulled Dobby out into the back courtyard at the new unit, the view is limited to a smaller area - a circle around the zenith.  Had a couple of looks at Jupiter and Saturn when they were up.

Other than that, didn't get much done.

M8 or M20?

The trials of midweek amateur astronomy on the front step...

Found a faint nebulous area just down a bit from Saturn tonight, just beside Sagittarius.
(by the time I got out at 2245 Sagittarius was already over into the Western sky, still high, but already "upside down" to how I usually visualise the "teapot")
Obviously this was either M8 (the Lagoon Nebula) or M20 (the Triffid nebula). I'm not really familiar with either through Dobby, and it was hard enough just finding that faint patch, so without being able to find the other nebula, I'm not sure what this one is.

Finding it was not easy. It's a moonless night, and the transparency is great and the seeing not bad. Started with a look at Mars, and no matter what eyepiece I used, Mars is still looking washy. Cranked up to near max magnification with the Barlow and my 13mm ep, but still was unable to make out any surface detail. The seeing was not quite good enough to hold still at that magnification.

Moved over to Saturn next and it is looking pretty good! It always does. Couldn't see any moons. The rings are still quite open and providing a great view.

Then I started looking around for the nebulae. I studied the star maps a few weeks ago, but that was with Sagittarius higher in the sky and the other way around, so I was having to remember it, flip it, rotate a bit, and then hope the damn tree wasn't in the way. Scanning around in the area with my 25mm ep on the Barlow turned up the faint nebulousity. It was roughly regular, so I'm guessing it was the Triffid Nebula, but when I looked a bit further afield to find the other nebula, I couldn't. I assume it was washed out by the light pollution, but that leaves unsure of which one I was looking at and how much of it I could see.

And that was it for that night. Had to get to bed, so packed up with at least a new nebula on the list. With a bit more time I'll nail it down, so feeling good about that.

Lakes yesterday, opposition today

A lake on Mars. That's cool.
Although, it is 1.5km under ice at the Southern Pole, and to be liquid at -68c it must be full of salts.

So another tantalising hint that life could be on Mars. All that salt is bad for cells, but I'm holding hope that life has found a way. Perhaps if the salt levels raised slowly enough to give Martian deep-lake-life enough time to adapt?

And today, the 27th, is opposition for Mars.

Hopefully the cloud cover parts enough tonight for a quick look from the front steps.

Saturn!

Oh, and Saturn was at opposition on June 28th. Which I missed, due to reasons. However, it doesn't move fast, so I'll have a chance to check it out over the next few nights. It's cold though, so I'll be moving fast!

Mars attacks!

Well, it looks like it is.

Last night the transparency was great ( a rare sight this time of year) and Mars was amazingly bright in the Eastern sky as I took Kn to Martial arts. By eye, it seemed just as bright as Venus - but very, very orange.

So just before bed, about Midnight, I quickly dragged Dobby on to the front step for a quick look.

It was windy, and biting cold (even through the big coat and scarf), and as it turned out the seeing was a bit poor. I lined up with the 25mm ep (Mars looking great on a sparse star field) and jumped straight to my 6mm ep but the shimmer was too strong, with Mars quite large and bright, I don't think I've ever seen it so close. Moving to the 13mm ep reduced the shimmer, but detail still eludes me. I might be able to convince myself I saw a white tinge at the top of the disc, where I would expect to see the polar ice, but everything was smeared by the seeing (and probably the dust storm as well).

No photos, as it was too cold.

Dare I hope for more clear nights as opposition approaches?

Setting a record

As part of the Stargazing Live TV event on ABC this week, the Uni of Melbourne was a site for the attempt on the world record for most people looking at the Moon through optics at the same time. This was a coordinated attempt across lots of sites across many cities.

Melbourne had other ideas.

Probably a new personal best for number of annoyed amateur astronomers at the same time.

I did take Dobby in the car, but didn't bother dragging it all the way into the universe, coz I know how these clouds work by now - and there were no gaps to be expected in these.

So L&K and I got counted, tagged, lead into the marshalling area and sat and watched the big screen showing Brian Cox and Julia Z doing the show. When the time came for the 10 minutes of gazing that were required for the attempt we all laughed darkly, gazed at the clouds, held our phones up with various apps running and took ironic photos.

The 10 minutes finished, we watched a bit more of the show and slowly packed up to leave.

The clouds parted for a 30 second glimpse of the moon, just to remind us of what could have been, then closed over again. There was much groaning. At least most people there got a quick go with the new mini telescopes they had bought with their ticket.

Apparently, the record was set. Over 40,000 people participated - which is awesome. But of course, they couldn't count us in that.

Bloody Melbourne. Again.

Picking the gap

Jupiter was at opposition back on May 9th, but was clouded out that night. Last night at 11pm I had a quick look out the front door and was pleased to see that not only was Jupiter nearly at zenith, but the sky all around it was clear, as was Saturn further down to the East.

Grabbed Dobby and started with the 13mm on Jupiter, which was very bright, but clearly saw two strong bands and a fainter, smaller, third band. The moons were in interesting positions, with (quick check of JoveMoons) Callisto and Ganymede close together and Io in close all on the right of the image, and Europa stuck out on the left by itself.

I tried the blue filter, which reduced the glare a bit but I'm not sure if I saw any extra detail with it. I also tried it with the Barlow, but that just magnified the atmospheric distortion so wasn't really worth it. I then put the yellow filter on my 6mm ep and found the extra magnification worked well, and the filter enhanced the bands a bit.
Had a good look and grabbed a few photos on the mobile.

I then had a quick look at the bright star to the North. Just because it was quite prominent and ruddy. It was Arcturus, the red giant in Bootes - although the constellation was not visible in the light polluted low Northern city sky. I don't notice Arcturus very often, but as the third brightest star in the night sky, and an interesting red giant as well, I'm going to work to memorise it as another sign post.

I then swung over to Saturn, now high enough in the eastern sky to be visible above the neighbours and the bushes in my garden.

It's been a long while since I last observed Saturn (has it been since the science day last year at the primary school???)

These observations were rushed, as the bastard clouds were rapidly approaching, sweeping around from the South West. I lost sight of Saturn behind clouds twice as I was observing due to the broken leading edge of the clouds. I tried a couple of rushed photos and then the clouds covered the sky almost entirely - except for a gap low on the East where Mars shone brightly. Unfortunately too low to bring the scope on to.

Some interesting more observing to do.
Saturn reaches opposition on Wednesday June 27th, and Mars on Friday July 27th. Maybe I should try firing up T for another dark sky excursion?

Jupiter

Just a quick note that last Saturday evening I showed Slim what Jupiter looks like when viewed through Dobby.
It was a pretty nice evening, very clear and with good transparency, so got a good view - Slim was moderately impressed.
Unfortunately Saturn was still too low to see.

Jupiter nearly at opposition

It was a beautiful clear night on Friday night (technically Saturday morning) the 28th of April and it was time to drag Dobby out to the front step.

The moon was a bright gibbous, so a quick look for some globular clusters in Scorpius was fruitless. Not that I spent much time, it was cool and I was a bit tired.

Jupiter was well worth the time though, and provided an amazing view of clear bands and a positive sighting of the GRS almost exactly at the middle of its transit across the face of the planet.

I snapped a couple of quick shots with my mobile, which as usual over-expose the planet, but show the disc and moons nicely.



Also attached is an image from the Juno Moons app showing the simulation of what I was looking at.

Commercial spaceflight, exoplanet and live streaming

About this time of the morning, back in 1985, I would be on the bus to another day in Year 7.
If we were lucky we might get to use a computer today, but that rarely happened in year 7. I may have been aware of another space shuttle mission happening/about to happen and I always enjoyed seeing any footage available of those that the news showed in the evening.*

This morning, as I caught the bus into work, I watched a live stream of SpaceX launching the NASA TESS mission on my phone.

Still a diesel smelling, bumpy ride (although a nicer bus than the old Volvo's that would take me to school) but today I could spend some of it holding a small, wireless device and watch live as a cheap, reusable (mostly) rocket took a NASA mission into orbit and then successfully landed the reusable stage. That was the 24th successful landing, so I'd say they've got that pretty much worked out.

The TESS mission is cool as well. Despite the Star Wars inspired certainty that year 7 me would have told you that there are planets around other stars, none had been confirmed at that time. There are now over 3800+ exoplanets confirmed, and the TESS mission is going to survey about 90% of the sky (although not as deep as other surveys) and will definitely add many more to that number. Awesome.

*I checked, and on this day 35 years ago the shuttle was just finishing a mission to deploy a communication satellite and do some other work and would land on the 20th April Australian time.

Screen snaps!

Nova in Carina

I've read over at AstroBlog that there is/was a new Nova in Carina.
I'd have liked to try to check it out, but the evenings have either been consistently overcast, or I've been busy.
I'll track down some other info on the web.

Haven't pulled Dobby out for a while. It's well overdue.

Starman update

Apart from loosing the central booster when it didn't fire enough engines to decelerate and hit the water next to the drone ship at about 500kph, everything else seems to have gone perfectly!
Starman is now on his way to the asteroid belt, and I'm not sure if that is because the burn went longer by design or accident. Coolness remains undiminished.

Showed the kids the videos of the animation and then the launch that was streamed. Then left on the live stream of the Tesla drifting away from Earth for a while, it was mesmerising.


It sounds like the battery has run out now, so there will not be any more images sent. I'll need to track down some of the last footage, as the receding Earth is just beautiful in those shots.

In the 2nd decade of the 21st Century...

I sit on a train, riding to work in Melbourne, watching the live broadcast on my mobile phone of the successful launch of Space X's Falcon Heavy.
I saw the successful twin landing of the outside boosters, I saw the video black out as the core booster started it's landing (there still is no news on what has happened to it)
I have seen live streaming video from the test payload as the faring was ejected and it settled into orbit waiting to start it's journey to Mars.
Not to land on Mars, it's not clean enough. But out to the orbit of Mars, and maybe a flyby within a few hundred thousand km of the red planet.
Space X is proving that commercial space flight is going to happen, much cheaper than government programs and with reusable components.