All Images Copyright Rod Gallagher                                                              Click here to see full size image                                                   Mouse over image to see annotation

M101 -- Pinwheel Galaxy

Object

Type

Spiral Galaxy

Constellation

Ursa Major

Distance

20.9M light-years

Magnitude

7.9

Size

28.8 x 26.9 arc-min

Notes

Messier 101 is also known as NGC 5457

Image also contains NGC 5447, NGC 5449, NGC 5450, NGC 5451, NGC 5453, NGC 5455, NGC 5461,

NGC 5462, NGC 5471, NGC 5477

Image

Date

2016-06-05

Place

Cheddar Ranch Observatory

Exposure Data

CRGB 210:90:90:90 mins @ -15C

C 42x5, R 18x5, G 18x5, B 18x5 min

Notes

All filters binned 1x1

Equipment

Optics

Takahashi TOA-150

Focal Length

1100 mm @f/7.3

Mount

Paramount ME

Camera

SBIG ST-10XME

Focuser

RoboFocus

Filters

CFW-10, Astrodon CRGB

Software

TheSkyX, CCDSoft, Focusmax, CCDAutopilot4, CCDStack 2+, PixInsight, PhotoShop CS6

Reprocessed on 09/28/2023