Alan Clitherow
/in User Gallery /by clitherowclanPhotographer: Alan Clitherow
Title: NGC2244 in SII,Ha and OIII
Image data:
Rosette Nebula,
8 by 10 min Ha, 5 by 10 min OIII and 2 by 10 min SII filtered images
CDS-600D II pro mono, cooled to -15 dec ‘C’.
Colours mixed to Hubble Palette.
ED80 telescope with 0.8 FR / field flattener lens.
This is a reduced and compressed version.
Fritz Helmut Hemmerich
/in Gallery, User Gallery /by liyunPhotographer: Fritz Helmut Hemmerich
Title: Comet Catalina and M101
Image Data:
APOD: 2016 January 21
Comet Catalina (C2013US10) and spiral galaxy M101
Two panel mosaic, each processed with 9 subframes,
90 sec exposure time, RASA 11 “/ F2.2,
Sony A7s (CentralDS modded and cooled), ISO3200, (the fireball was captured in a single frame of 30 sec at ISO3200)
EQ8 mount, 2016-01-17, Tenerife, Canary Islands, 1180 meter above sea level.
Fritz Helmut Hemmerich
/in Gallery, User Gallery /by liyun
Photographer: Fritz Helmut Hemmerich
Title: Two Comets and a fireball
Image Data:
APOD: 2016 January 6
Comet Borrelly (P/19) , Comet Catalina (C/2013 US10) & a fireball
Two panel mosaic, each processed with 12 subframes,
82 sec exposure time, RASA 11 “/ F2.2,
Sony A7s (CentralDS modded and cooled), ISO800, (the fireball was captured in a single frame of 30 sec at ISO3200)
EQ8 mount, 2016-01-01, between 4:45h and 6:45h UT, Tenerife, Canary Islands, 1180 meter above sea level.