My astrophotography 2021

[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.

[hhzhang]

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

[hhzhang]

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]

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]

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.

This is an excellent shot! Where did u shoot it from, gonna put the location that in my list.

[hhzhang]

.....delete....

[hhzhang]

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.

[hhzhang]

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]

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]

2021-7-26

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