M3 first one back colour imaging

27 April 2023|Globular Cluster, M1-30, News|

First one after finally (8 months) getting my QHY168C back from China – actually a replacement because they said they’d fixed the old one but hadn’t. New replacement which works fine.

Object IDM3 Globular cluster
Canes Venatici
Mag. 6.2, Size 18′
Details2023-04-26 21:15 –
Telescope250mm f4.8 Newtonian
CameraQHY168C @-10°C
Exposure(s)20 x 180s
d f df
ProcessingAPP, Photoshop

Deeper version of M13

3 May 2020|Globular Cluster, M1-30, News|

Decided to try 240s exposures in each of RGB this time instead of my usual 180s (chosen to balance detail and LP) and it seems to have worked well, especially since there only 5 subs of each colour. Much deeper into the fainter stars too.

Object IDM13 Great Globular, Hercules
NGC 6205
DetailsMag 5.8 Size 16.6′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX @-15C
Exposure(s)5x240s ea RGB
draks, flats, bias
ProcessingAPP, Photoshop

M27 (NGC 6853) Dumbbell Nebula

20 September 2019|M1-30, News, Planetary Nebula|

Done this one quite few times now but this is the first time processing with Astro Pixel Processor. Good for gradients and light pollution but a little slow.

Object IDM27 (NGC 6853)
Dumbell Nebula
DetailsMag. 7.5
Size 8′ x 5.6′
Telescope250mm f4.8 Newtonian
EQ6-R autoguided to 0.5″
CameraAtik 460EX at -15C
Baader RGB filters
Exposure(s)10 x 120s each in RGB
Flats, darks and bias
ProcessingAstro Pixel Processor (APP)

M3 (NGC 5272) RGB just a few exposures

14 March 2019|Globular Cluster, M1-30, News|

Just a few exposures between gaps in the clouds. L not used because of dust on the filter.

Object IDM3 (NGC 5272)
DetailsCanes Venatici
Mag. 6.2, Size 18′
Telescope203mm RC8 at f8
CameraAtik 460Ex @-20C
Badder RGB filters
IDAS P2 LP filter
Exposure(s)R,G 2x120s, B1x120s, 2×2
CaptureAPT, PHD2
ProcessingNebulosity 4, Photoshop


5 September 2018|Globular Cluster, M1-30, News|

First proper imaging session of the season. New mount (EQ6-R) is guiding well with an RMS error of about 0.6″, Coma corrector is working well too. Stars are sharp right to the edges.

Object IDM15 (NGC 7078)
Not very transparent and the remnants of twilight too.
Telescope200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guiding c80ED, ASI 290MC
CameraCanon 600D
Exposure(s)10x60s, darks and flats
CaptureAPT, PHD
ProcessingNebulosity, Photoshop