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                       Messier 99 (mouse over shows names)

M98+M99 by Gerard van den Braak  

Object data

Object type:

M 99 (NGC 4254)

Size object :

5.3x4.6 arcmin.

Magnitude:

9.9

Constellation:

Coma Berenices

Distance:

55 x 10^6 LY

 

 

Exposure data

Date, time

2011-04-22    ~01.15 hour

Julian day number

2455  674

Location:

Zuidlaren, Holland

Telescope:

Takahashi FQS106ED + 1,7x extender Q (f8)

Camera:

Canon 350d (mod)

Filters:

L: 6x600 s

  R:
  G:
  B:

Temperature outside:

+17 0C

Temperature CCD:

 

SQM: 20.30

Binning:

 

Field of view: 89´x57´

Imaged by:

Gerard van den Braak

Processing tools:

 

Notes:

crop, bad transparency