My astrophotography 2021

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
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hhzhang
Posts: 730
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

Before I left the site around 11PM, I snapped a few shots of Jupiter+Moon over MBS.

Only in hindsight, I realised that I totally forgot Saturn. Checked through each photo carefully, I only found two photos with Saturn in the frame --- albeit in both cases the planet sits right on th edge.


Image
hhzhang
Posts: 730
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

2021-7-21 morning. A quick shot of the Moon-Jupiter conjunction.

Image
hhzhang
Posts: 730
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

joshua1189 wrote: Mon Jul 26, 2021 9:20 am
hhzhang wrote: Mon Jul 26, 2021 9:15 am
joshua1189 wrote: Sun Jul 25, 2021 6:50 pm Amazing photos, i will like to ask how you do your polar alignment, i followed the Google maps method but i do get trailings when i shoot however the good news is that the trailing is very consistent irregardless of exposure time from 3-4s all the way to 60s in the length which puzzles me greatly
Thanks.

Can you give more details of your system? It sounds not like the trailing might not be primarily attributed to polar alignment error.
I am using a move shoot move tracker and an Olympus Pen as my set up
No experience with MSM tracker. If you are shooting wide angle, I don't understand why trailing is present in 3-4s frames.

Do you use a remote shutter release -- or a timer?
joshua1189
Posts: 6
Joined: Sun Jul 25, 2021 1:06 pm
Favourite scope: dslr

Re: My astrophotography 2021

Post by joshua1189 »

hhzhang wrote: Mon Jul 26, 2021 9:28 am
joshua1189 wrote: Mon Jul 26, 2021 9:20 am
hhzhang wrote: Mon Jul 26, 2021 9:15 am

Thanks.

Can you give more details of your system? It sounds not like the trailing might not be primarily attributed to polar alignment error.
I am using a move shoot move tracker and an Olympus Pen as my set up
No experience with MSM tracker. If you are shooting wide angle, I don't understand why trailing is present in 3-4s frames.

Do you use a remote shutter release -- or a timer?
I am using a medium telephoto of 85mm full frame equivalent.
For my tracker, make it face south and aligned everything to the south since we’re 1 degree north.

I use a wireless trigger via the Olympus app on my phone. The only variable is the wind from my living room but I’m not to sure how much can wind affect the set up.
celeron787
Posts: 113
Joined: Sun Jan 12, 2020 2:30 pm

Re: My astrophotography 2021

Post by celeron787 »

hhzhang wrote: Mon Jul 26, 2021 9:20 am I went down to Marina Bay again. And watched how the cloudy skies turned to almost cloudless over a time frame of 2 hours or so.

The moon rises before it goes behind the clouds.
Image
This is an excellent shot! Where did u shoot it from, gonna put the location that in my list.
hhzhang
Posts: 730
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

.....delete....
Last edited by hhzhang on Mon Jul 26, 2021 4:20 pm, edited 1 time in total.
hhzhang
Posts: 730
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

celeron787 wrote: Mon Jul 26, 2021 2:20 pm
This is an excellent shot! Where did u shoot it from, gonna put the location that in my list.

I was shooting from a few vantage points on Esplanade Dr or on the adjacent Jubilee bridge. Did a little homework on Google maps and skymap before coming down.
Last edited by hhzhang on Mon Jul 26, 2021 4:19 pm, edited 1 time in total.
hhzhang
Posts: 730
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

joshua1189 wrote: Mon Jul 26, 2021 12:23 pm
hhzhang wrote: Mon Jul 26, 2021 9:28 am
joshua1189 wrote: Mon Jul 26, 2021 9:20 am

I am using a move shoot move tracker and an Olympus Pen as my set up
No experience with MSM tracker. If you are shooting wide angle, I don't understand why trailing is present in 3-4s frames.

Do you use a remote shutter release -- or a timer?
I am using a medium telephoto of 85mm full frame equivalent.
For my tracker, make it face south and aligned everything to the south since we’re 1 degree north.

I use a wireless trigger via the Olympus app on my phone. The only variable is the wind from my living room but I’m not to sure how much can wind affect the set up.
hmm. is it set to the correct rotation direction (south rather than north, i.e. CW vs CCW)? what's the primary direction of the star trail?
joshua1189
Posts: 6
Joined: Sun Jul 25, 2021 1:06 pm
Favourite scope: dslr

Re: My astrophotography 2021

Post by joshua1189 »

hhzhang wrote: Mon Jul 26, 2021 4:24 pm
joshua1189 wrote: Mon Jul 26, 2021 12:23 pm
hhzhang wrote: Mon Jul 26, 2021 9:28 am

No experience with MSM tracker. If you are shooting wide angle, I don't understand why trailing is present in 3-4s frames.

Do you use a remote shutter release -- or a timer?
I am using a medium telephoto of 85mm full frame equivalent.
For my tracker, make it face south and aligned everything to the south since we’re 1 degree north.

I use a wireless trigger via the Olympus app on my phone. The only variable is the wind from my living room but I’m not to sure how much can wind affect the set up.
hmm. is it set to the correct rotation direction (south rather than north, i.e. CW vs CCW)? what's the primary direction of the star trail?
Yup, set to south and It tend to trail south west.
hhzhang
Posts: 730
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

2021-7-26

Keep chasing the Venus-Regulus-Mars trio's play in the evening sky. How fast is Venus moving!

Image
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