All Images Copyright Rod Gallagher                                      Click on image to see full size

M61 -- Spiral Galaxy

Object

Type

Barred Spiral Galaxy

Constellation

Virgo

Distance

52.5M light years

Magnitude

9.7

Size

6.5 x 5.8 arc-min

Image

Date

2020-05-20

Place

Bixhoma Observatory (H33)

Exposure Data

LRGB 120:30:30:30 mins @ -30C

L 24x5, R 6x5, G 6x5, B 6x5

Notes

All filters binned 1x1

Equipment

Optics

Planewave 17 CDK

Focal Length

2939 mm @f/6.8

Mount

Paramount ME

Camera

SBIG STXL-6303E w/AOX

Focuser

IRF-90 Rotating Focuser

Filters

FW8G-STXL, Astrodon LRGB (Gen 2), Astrodon Ha (3 nm), Astrodon OIII (3 nm)

Software

TheSkyX, FocusMax4, CCDAutopilot5, CCDStack 2+, PixInsight, PhotoShop CS6