NGC 4438 (Vir)

NGC 4438 (Vir)

Click on the image for a larger version

Date/Site: 9., 19. May and 2. June 2018. Remote observatory on the AAR club's site in Presberg
Exposure/
Filter:
R: 12 x 300 seconds
G: 9 x 300 seconds,
B: 11 x 300 seconds,
L: 20 x 300 seconds (-20°C)
Camera: QSI 632 with Astronomik Type II-Filters
Optics/
Instrument:
250mm f/4 Newton with Baader RCC1 on 10Micron GM1000 HPS
Guiding: Lodestar attached to a 61mm-finder,
focusing with Microtouch and FocusMax,
data acquired remotely using CCD-Commander and MaximDL 6,
calibration: MaximDL 6, processing: PixInsight 1.8

 

© Friedhelm Hübner, last revision:  03.12.2023