Search found 73 matches
- Thu Jul 28, 2022 1:19 pm
- Forum: Astrophotography
- Topic: Widefield MW Dust in Scutum
- Replies: 3
- Views: 359
Re: Widefield MW Dust in Scutum
Great shot considering the severe light pollution here in Singapore! By the way I can definitely vouch for NoiseXterminator, it simply works like magic!
- Sun Jul 24, 2022 5:14 pm
- Forum: Astrophotography
- Topic: Southern DSO Astrophotography
- Replies: 14
- Views: 3782
Re: Southern DSO Astrophotography
hhzhang wrote: ↑Sat Jul 16, 2022 1:03 pmThanks for the encouragement! Your images are awesome too!rifleman175 wrote: ↑Fri Jul 15, 2022 6:02 pm SHO image of the Lagoon Nebula and the Trifid Nebula
Awesome!
- Sun Jul 24, 2022 5:12 pm
- Forum: Astrophotography
- Topic: Southern DSO Astrophotography
- Replies: 14
- Views: 3782
Re: Southern DSO Astrophotography
Digging into the data collected over the past few months, I stumbled upon this gem of an emission nebula in Carina. And no, it is not the Carina Nebula. Well, from the picture below you would have seen that it is instead the Statue of Liberty Nebula (NGC3576), together with 2 other prominent HII reg...
- Fri Jul 15, 2022 6:02 pm
- Forum: Astrophotography
- Topic: Southern DSO Astrophotography
- Replies: 14
- Views: 3782
- Wed Jun 22, 2022 5:38 pm
- Forum: Buy and Sell
- Topic: WTS: [Reduced] S$350 Skywatcher Explorer 150PDS F/5 Newtonian Telescope (With accessories)
- Replies: 7
- Views: 7722
- Wed Jun 22, 2022 5:36 pm
- Forum: Buy and Sell
- Topic: WTS: William Optics GT71 OTA with Accessories (Reduced)
- Replies: 3
- Views: 6513
- Sat May 28, 2022 11:30 pm
- Forum: Astrophotography
- Topic: A Method of Determining the Bortle Class at my Observation Site
- Replies: 2
- Views: 2444
Re: A Method of Determining the Bortle Class at my Observation Site
Based on the results from image analysis, it would seem that the limiting naked eye magnitude at my observation site in Sengkang should theoretically be 4.8. However, I regret to say that I am unable to see stars so dim even after having reasonably dark adapted. Under the best conditions, I was able...
- Sat May 28, 2022 11:05 pm
- Forum: Astrophotography
- Topic: A Method of Determining the Bortle Class at my Observation Site
- Replies: 2
- Views: 2444
Re: A Method of Determining the Bortle Class at my Observation Site
I am using a ZWO ASI2600MM Pro camera for most of my astrophotography works, so the test will be done with it. The formula for the light pollution rate is given as such: light pollution rate = (median ADU of 1 light frame - median of master bias frame) * electrons per ADU / the exposure length of th...
- Sat May 28, 2022 10:05 pm
- Forum: Astrophotography
- Topic: A Method of Determining the Bortle Class at my Observation Site
- Replies: 2
- Views: 2444
A Method of Determining the Bortle Class at my Observation Site
Having fallen into the rabbit hole of astrophotography for 2 years, I have plenty of imaging nights under Singapore's obnoxiously light-polluted skies. As such, I have been mostly limited to doing narrowband imaging with monochrome astronomy cameras to minimise the adverse impact of these manmade ph...
- Sat May 28, 2022 3:11 pm
- Forum: Astrophotography
- Topic: Southern DSO Astrophotography
- Replies: 14
- Views: 3782
Re: Southern DSO Astrophotography
WOW that looks very good!! How did you manage to find 20 hours of good weather?! With my set-up on the balcony, I pretty much just shoot every single night now as long as there is clear weather. No more lugging the heavy scope + tripod + mount around in the night, battling the mosquitoes and the he...