Open Cluster
Messier 38
Starfish Cluster

Object :	M38 (NGC 1912)
Coordinates/Direction :	RA: 05h28m, DEC: +35^o51'
Object size :	21'
Apparent magnitude :	7.4
Distance :	3480 ly
No solar mass :	-
Radius :	13 ly
Discovered by :	Giovanni Batista Hodierna, year 1654
Find in constellation :	Auriga
More to know :	Wikipedia: https://en.wikipedia.org/ wiki/ Messier 38

M38, 2024-09-30

Open cluster M38, Nikon D800, Pentax 645 FA 300 mm ED f/4, 2024

(click on the image to get a full resolution photo in a new window)

Date :	2024-09-30
Time (UT) :	22:04 - 22:46

Mount :

SkyWatcher EQ6 Pro, Beltdrive (DIY 2019)

Guide :

ASI120 camera with off-axis

Lens/telescope :	Pentax 645 FA 300 mm ED f/4 (set to f/4)
Corrector/Barlow :	-
Field (FOV) :	6.8x4.5^o (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 KStars/Ekos Linux, 64-bit (2024)

Exp. time :	30x60 seconds, iso400, dithering mode
Image process tool :	Siril, Gimp, Irfanview
Processing :	flat, photometric color calibration
Weather :	Clear sky, temperature +7^o C

Site :

Sweden, Stockholm, Hagsätra. Bortle 9
Free view Az: 20^o to 90^o, 165^o to 185^o, Alt: 20^o to 55^o

Comment :

One of three open clusters on a row. Look at the full resolution image and you see a lot of details. On this plate solved image you can see what objects there are: M38 plate solved, Astrometry.net.

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Open Cluster Messier 38 Starfish Cluster

M38, 2024-09-30

Open Cluster
Messier 38
Starfish Cluster