NGC 7129

CLUSTER ASSOCIATED WITH NEBULOSITY IN CEPHEUS

 (ra: 21:41 3s / dec  66º06')

COLLABORATION WITH  LEONARDO ORAZI IMAGE ACQUISITION

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COLLE FAUNIERA / PRAGELATO APLS - CUNEO / TORINO - ITALY

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DATA

TYPE: Cluster associated with nebulosity

APPARENT MAGNITUDE: 12

DIAMETER: 8 arc minutes

DISTANCE: 3000 light years

OBJECT DESCRIPTION AND IMAGE SESSION

NGC 7129 is a star-forming region that contains many interesting features. Astronomers estimate that many of the bright stars shown here are younger than 1 million years old! These "baby" stars are very energetic and emit copious amounts of radiation that break apart (photo dissociate) clouds of natal gas that surrounds them. One edge of this newly formed cavity glows pink due to the excited hydrogen gas in the region. In addition, a small number of very red structures indicate regions where new stars are forming (but are not yet visible directly). (*)

IMAGE INFORMATION

SCOPE: GSO RC 8" f8 1624 mm

MOUNT: AP MACH 1 GTO

CAMERAS: ATIK 4000LE (-15ºC)with SX USB Filter Wheel

ACQUISITION: Maxim DL/CCD, Perseus

FILTERS: Baader 2" LRGB 

EXPOSURES: LRGB (230,75,75,75) all bin 2x2

GUIDING: ATIK 16IC on Pentax 75 APO @ F6.7 500mm

PROCESSING: IMAGES PLUS, PHOTOSHOP CS2,

(*) Source: Information extracted from NOAO. National Optical Astronomy Observatory