TRUMPLER 10

OPEN CLUSTER ASSOCIATED WITH NEBULOSITY

VELA

 (Image Centred at ra 8h:48m / dec - 42:33)

Processed in April 2016 - Camping La Porteña, San Antonio de Areco, Buenos Aires, Argentina

DATA

Type: Open cluster associated with nebulosity 

Visual brightness: 4.6

Apparent diameter: 15 arc minutes

Distance: 1.100 light years

IMAGE INFORMATION

TELESCOPE: 8" Orion Optics UK Mirror with Televue Paracorr (1150 mm focal length)

CAMERA: QSI 583 WS

FILTERS: Baader LRGB

SKY CONDITIONS: rural skies,

EXPOSURES: LHaRGB (40,30,30,30,30) Ha in bin 2x2

OBJECT DESCRIPTION AND IMAGE SESSION

This cluster was possibly discovered by Nicolas Luis Lacaillle between 1751-1752. By the next century, it was catalogued by James Dunlop in 1828 and finally independently registered by Robert J. Trumpler in 1930.

Trumpler 10 is a beautiful open cluster in the constellation of Vela, close to western south HII area of Gum 17 and almost 4 degrees west from Lambda Velorum. The cluster has an irregular shape but many bright stars shining from magnitude 7 to 9. Its brightest star is mag 6.4 (SAO 220.345) visible at the upper center left of the image. Following WEBDA the cluster is 38 million years old.