NGC 2237 – Rosette Nebula

Exposure data
Object data of NGC 2237
Telescope: 4.5″ Newton f=440mm
Camera: SBIG ST8300M
Filters: HαOlllSll
Exposure times: Hα: 12x15min OIII: 6x15min SII: 6x15min
Exposure time total: 6h
Mount: Vixen New Atlux
Location: Erdweg/Germany (500m)
Date: 2012-03-27+28

Object type: Open star cluster (ll 3 r n) with emission nebula
Size: 80′ x 60′
Magnitude: 6.0 mag
Constellation: Monoceros
Distance: 5000 Ly