Daily Archives: February 23, 2015

Online broadcastings by SPONLI


Be sure not to miss our test online broadcastings, unique and fascinating!


Today you have the opportunity to see Jupiter with its 4 moons: Callisto, Ganymede, Io, Europa.

Soon enough we’ll show the Earth’s Moon!

See you soon, SPONLI TEAM

Owl nebula, M 97, NGC 3587


The Owl Nebula is a planetary nebula located approximately 2,030 light years away in the constellation Ursa Major. This object is known by the catalogue identifiers Messier Object 97 (M97) and NGC 3587. It was discovered by Frenchastronomer Pierre Méchain on February 16, 1781. When William Parsons, 3rd Earl of Rosse observed the nebula in 1848, his hand-drawn illustration resembled an owl’s head. It has been known as the owl nebula ever since.

Imaging cameras: Atik 16
Mounts: Skywatcher NEQ6-Pro
Guiding telescopes or lenses: Lunatico Astronomia EZG-60
Guiding cameras: The Imaging Source DBK21AU04.AS
Software: Pleiades Astrophoto Pixinsight Core 1.8
Filters: Baader Planetarium Ha 7nm,  Hutech IDAS 2″ LPS-P2,  Baader Planetarium OIII 8.5nm 1.25″
Resolution: 617×487
Dates: April 5, 2014,  April 7, 2014
Baader Planetarium Ha 7nm: 4×600″ bin 1×1
Baader Planetarium Ha 7nm: 11×900″ bin 1×1
Baader Planetarium OIII 8.5nm 1.25″: 13×300″ bin 2×2
Integration: 4.5 hours
Avg. Moon age: 6.15 days
Avg. Moon phase: 37.32%
RA center: 168.690 degrees
DEC center: 55.012 degrees
Orientation: -175.827 degrees
Field radius: 0.187 degrees
Locations: Observatorio Urbano en Palma de Mallorca, Palma de Mallorca, Balears, Spain
 Author: Karlov
SPONLI is a project about astrophotography, for amateur astronomers.
Be the first-one to know about the launch of the project – pass an easy registration on our web-site: