Deep Sky Object in Spring
Molecular Cloud around M81, M82
|Date & Time: ||Nov 5 2016, from 26:26 to 28:27 JST(+0900)
|Composed 37 shots with 3 minutes exposed|
|Optical: ||AF zoom-Nikkor ED 80-200mmF2.8 (f=105mm, Aperture: F4.0)
|Auto-guided with TAKAHASHI EM-200 Equatorial
|Digital Camera: ||Nikon D810A
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912)|
|Device Size...FX formet (36×24mm)|
|Sensitivity...ISO3200, White Balance...Daylight|
This star field photograph has captured around northwest part of Ursa Major with span of about 11×15°.
Two elliptical lumps in left hand side are M81 and M82, as you can see extraordinary dimmed molecular clouds are spread around this field.
Especially there is comparatively thick and stripe-shaped part of clouds in northwest of two major galaxies.
It's known that the heaven includes many other such dimmed molecular clouds.