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                         Caldwell C99 Coalsack (mouse over shows names)

Caldwell C99 by Gerard van den Braak

Object data

Object type:

Coale Sack dark nebula
Caldwell C99

Size:

70 x 70

Magnitude:

-

Constellation:

Musca/Centaurus-Crux

Distance:

610 and 790 LY (two overlapping nebalae)

 

Exposure data

Date, time

2010-09-06   ~01.50 hour

Julian day number

2455 446

Location:

Kings Creek Station, Australia

Telescope:

-

Camera:

Canon 350D

Filters:

L: 1x 120 sec / ISO1600

Temperature outside:

220C

SQM: 20.50

Processing tools:

Images Plus / Photoshop CS3

Imaged by:

Gerard van den Braak

Notes:

Not guided