Advertisement / Annons: |
Galaxy |
Object : | NGC 2403, Caldwell 7 Galaxy |
Coordinates/Direction : | RA: 07h36m, DEC: +65o36' |
Object size : | 22' x 12' |
Object magnitude : | 8.9 |
More to know : |
Wikipedia: https://en.wikipedia.org/ wiki/ NGC 2403 |
NGC 2403, 2024-09-14(Click on the image and get the full resolution one in a new window) |
Date : | 2024-09-14 |
Time (UT) : | 22:04 - 23:06 |
Mount : | SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019) |
Guide : | ASI120 camera with off-axis |
Lens/telescope : | Pentax 645 FA 300 mm ED f/4 (medium format lens) |
Corrector/Barlow : | - |
Field (FOV) : | 6.8x4.5o (full frame) before crop |
camera : | Nikon D800, QE=0.56, full frame, 36 Mpixel, 14 bit |
camera temperature: | - , no temperature sensor |
Film/CCD : | Raw, NEF |
Filter : | none |
Control system: | Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux, 64-bit) |
Exp. time : | 59x60 seconds, iso400, dithering every 3th |
Image process tool : | Siril, Gimp, Irfanview |
Processing : | flat, photometric color calibration |
Weather : | clear sky, temperature +14o C |
Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
Comment : | One more image with the Nikon D800 camera and the Pentax FA lens. |
NGC 2403 long exposure, 2023-10-04 to 2023-10-12(Click on the image and get the full resolution one in a new window) |
Date : | 2023-10-04 to 2023-10-12 |
Time (UT) : | - |
Mount : | SkyWatcher HEQ5, belt modified, low rider |
Guide : | QHY5 camera with 200 mm f/3.5 lens |
Lens/telescope : | Pentax 645 300 mm ED f/4 (medium format lens) |
Corrector/Barlow : | - |
Field (FOV) : | 6.8x4.5o (full frame) before crop |
camera : | Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit |
camera temperature: | About 6o C above surrounding temperature |
Film/CCD : | Raw, Cr2 |
Filter : | none |
Control system: | Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux) |
Exp. time : | 154x60 seconds, iso1600, dithering mode |
Image process tool : | Siril, Gimp, Irfanview |
Processing : | crop, resize, level, cal dark, bias, flat, photometric color calibration |
Weather : | clear sky |
Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
Comment : | A new attempt with 2.5 hours exposure from three nights to bring the noise down. Better but far from okay. |
NGC 2403 2023-10-05(Click on the image and get the full resolution one in a new window) |
Date : | 2023-10-05 |
Time (UT) : | 21:07 to 22:22 |
Mount : | SkyWatcher HEQ5, belt modified, low rider |
Guide : | QHY5 camera with 200 mm f/3.5 lens |
Lens/telescope : | Pentax 645 300 mm ED f/4 (medium format lens) |
Corrector/Barlow : | - |
Field (FOV) : | 6.8x4.5o (full frame) before crop |
camera : | Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit |
camera temperature: | About 6o C above surrounding temperature |
Film/CCD : | Raw, Cr2 |
Filter : | none |
Control system: | Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux) |
Exp. time : | 60x60 seconds, iso1600, dithering mode |
Image process tool : | Siril, Gimp, Irfanview |
Processing : | crop, resize, level, cal dark, bias, flat, photometric color calibration |
Weather : | clear sky |
Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
Comment : | A new attempt at a night without the Moon. I really need my bigger refractor for this object. There ore other objects, even smaller to examine in the full resolution image. Have a look here at the plate solved image: NGC 2403 Astrometry plate solved. |
NGC 2403 2023-09-30(Click on the image and get the full resolution one in a new window) |
Date : | 2023-09-30 |
Time (UT) : | 20:31 to 21:46 |
Mount : | SkyWatcher HEQ5, belt modified, low rider |
Guide : | QHY5 camera with 200 mm f/3.5 lens |
Lens/telescope : | Pentax 645 300 mm ED f/4 (medium format lens) |
Corrector/Barlow : | - |
Field (FOV) : | 6.8x4.5o (full frame) before crop |
camera : | Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit |
camera temperature: | About 6o C above surrounding temperature |
Film/CCD : | Raw, Cr2 |
Filter : | none |
Control system: | Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux) |
Exp. time : | 60x60 seconds, iso1600, dithering mode |
Image process tool : | Siril, Gimp, Irfanview |
Processing : | cal bias, flat, photometric color calibration |
Weather : | clear sky, Moon |
Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
Comment : | Last September the spiral galaxy NGC 2403 was in correct position for a photo. It's an outlaying member to the M81 group. It's a small galaxy for my wide angle optic of 300 mm. |
|
Go Back |