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Hickson 90 -- Galaxy Group

Object

Type

Galaxy Group

Constellation

Piscis Austrinus

Distance

112M light-years

Magnitude

11.9

Size

2.1 x 1.3 arc-min

Notes

Image contains 90A - NGC 7172, 90B - NGC 7176, 90C - NGC 7173, 90D - NGC 7174

Image

Date

2009-09-17

Place

Okie-Tex Star Party

Exposure Data

Clear 30 mins @ -15C

C 6x5 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

TheSky6, CCDSoft, Focusmax, CCDAutopilot4, CCDStack 2+, PixInsight, PhotoShop CS6

Reprocessed on 08/23/2023