Dec 4th. I took this image of the night sky looking east from central Vic while testing a new Canon Ra camera. Single shot of 24 sec x 6400 iso with 24 mm lens (no tracking). The view is of the Orion, Taurus, Canis Major area. There is some skyglow as I live in a town.
Can you identify these constellations and in particular: the Saucepan, M42, Rigel, Betelgeuse, Aldebaren, Sirius?
I can even see the red cloud of Barnard's Loop around Orion.
Can you identify anything else ? Thanks for viewing.
John,
Very nice result!
I’d like to know the limiting magnitude you achieved with a 8mm aperture (I assume the lens was f3) and a 24 sec exposure.
Very impressive when you think of it.
(I’ll see if I can load it into CdC and look for the limit.....)
I'll start with the easy one, bottom centre just aboce the dip in the tree line is NGC 2237 The Rosette Neb. Above Orion, just above the centre of the image is the constellation Lepus and to the right of it, above Canis Major is Columba. I could go on but will leave for others to have some fun.
Looks good. I can see M41 and Rossette nebula. I tried to zoom in and then noticed star trails. You need tracking or shorter exposure with maybe higher ISO if camera allows.
If you are using the 500 rule it will tell you 21 sec for this camera, lens, f stop & declination combination. However it is not as accurate with newer cameras and I suggest you use the NPF rule which indicates 5.97 sec. maximum exposure around 0 deg. declination. I use PhotoPills to give me the maximum exposure length, both 500 rule and NPF.
If camera allows try 6 sec at 25,000 ISO. I just looked up the specs for the camera, WOW! Enjoy!
Martin,
Plate solving your image and looking around Mu Lup I find the limiting magnitude (based on your jpg ) is around 9.3 mag.
Not bad for a 24 sec exposure with a 6mm lens!!!
