Nova Herculis 1934 shell
Posted: Sat Aug 17, 2024 4:36 pm
Nova Herculis 1934 (or DQ Herculis) was a nova that happend in December 1934. In its wake it's leaving now a shell. More info here: https://en.wikipedia.org/wiki/DQ_Herculis
It's a small object (around 35 arcsec on its widest) at around 1600 light year.
It's not a visually "spectacular" object but I like to capture the small astro underdogs
The central star is also a eclipsing binary star of which I made an animation, see here: viewtopic.php?t=7947
This object is very rarely captured by amateurs. If ever: a Google search doesn't show any amateur results.
It is a real challenging object. Fine size for my 2000mm focal length, but being on a balcony in a Bortle 6/7 location makes it even more challenging.
I tried it in broadband with an IR/UV Cut filter, but nothing showed up. Going for longer exposures in broadband here is kind of useless because of the light pollution. But I also suspect this object is a narrowband target.
So tried the Optolong L-eNhance and L-eXtreme filters and the eNhance gave the best results.
In total a bit over 5 hours of data (clear skies are very rare at the moment) and will continue next year.
And in hindsight I should have started with 600sec exposures from the start, but it is what it is.
All in all I am more than happy that I've been able to capture it. It's vague but it's there
Original size is here: https://i.ibb.co/2hPtr2P/Nova-Herculis-1934.jpg
Bortle 6/7
Meade LX200 8" f/10 ACF OTA
Ioptron CEM25EC mount (no guiding)
Optolong L-eNhance filter
Zwo ASI071MC Pro camera
Captured with SharpCap Pro @ -10 Celsius / White balance R50 B50
19 x 300sec / Gain 90 / Offset 4
21 x 600sec / Gain 90 / Offset 4
Darks + (dark)flats
Stacked with SiriL (m.b.v. SiriLic)
Processed with SiriL and Photoshop
It's a small object (around 35 arcsec on its widest) at around 1600 light year.
It's not a visually "spectacular" object but I like to capture the small astro underdogs
The central star is also a eclipsing binary star of which I made an animation, see here: viewtopic.php?t=7947
This object is very rarely captured by amateurs. If ever: a Google search doesn't show any amateur results.
It is a real challenging object. Fine size for my 2000mm focal length, but being on a balcony in a Bortle 6/7 location makes it even more challenging.
I tried it in broadband with an IR/UV Cut filter, but nothing showed up. Going for longer exposures in broadband here is kind of useless because of the light pollution. But I also suspect this object is a narrowband target.
So tried the Optolong L-eNhance and L-eXtreme filters and the eNhance gave the best results.
In total a bit over 5 hours of data (clear skies are very rare at the moment) and will continue next year.
And in hindsight I should have started with 600sec exposures from the start, but it is what it is.
All in all I am more than happy that I've been able to capture it. It's vague but it's there
Original size is here: https://i.ibb.co/2hPtr2P/Nova-Herculis-1934.jpg
Bortle 6/7
Meade LX200 8" f/10 ACF OTA
Ioptron CEM25EC mount (no guiding)
Optolong L-eNhance filter
Zwo ASI071MC Pro camera
Captured with SharpCap Pro @ -10 Celsius / White balance R50 B50
19 x 300sec / Gain 90 / Offset 4
21 x 600sec / Gain 90 / Offset 4
Darks + (dark)flats
Stacked with SiriL (m.b.v. SiriLic)
Processed with SiriL and Photoshop
