Observation by Ian Rothwell: M101 (Pinwheel Galaxy)

Uploaded by

Ian Rothwell

Observer

Ian Rothwell

Observed

2018 Feb 12 - 03:45

Uploaded

2018 Feb 12 - 23:21

Objects

M101

Planetarium overlay

Enable overlay
Show stars
Label stars
Show deep sky objects
Label deep sky objects
Show constellation boundaries
Show constellation sticks
Show constellation labels
Show RA/Dec grid

Constellation

Ursa Major

Field centre

RA: 14^h03^m
Dec: +54°20'
Position angle: -178°45'

Field size

0°47' × 0°31'

Equipment

SkyWatcher Explorer 150P
ZWO ASI1600MMCool Pro
ZWO EFW 1.25" x 8

Exposure

5 x each RGB 2min subs, 15 x Lum 40 sec + flats +bias. Dithered

Location

Bournemouth, Dorset

Target name

M101

Title

M101 (Pinwheel Galaxy)

About this image

The Pinwheel Galaxy is a face-on spiral galaxy distanced 21 million light-years away from earth in the constellation Ursa Major.

Distance to Earth: 20.87 million light years

Radius: 85,000 light years

Apparent mass: ~1,000 billion M☉

Apparent size (V): 28′.8 × 26′.9

Number of stars: 1 trillion (10¹²)

Coordinates: RA 14h 3m 13s | Dec +54° 20′ 57″

Files associated with this observation

M101_LRGB.jpg (1017.9 kB)

Like this image

Peter Carson, David Basey, Peter Mulligan, Jeremy Shears

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.