NGC7000 – HOO and SHO

11h50 exposure (Ha/OIII/SII:4h50/3h30/3h30 sub:300s)
Acquired on 3 nights of 2019 (08/25, 09/04 and 09/12)

NGC7000 large crop - SHO - 11h50 - ciel-de-nuit-en-vercors.fr
Setup: Samyang 135mm F/2 @F/2.8, AZ-EQ6, QHY163m gain=100, QHYCFW2-M, AstroLink 4 mini, QHY5L2M. Software: APT, Stellarium scope, EQ MOD, PHD2

This is an another famous target, very bright and very high in the summer sky: the North America nebula also named NGC7000. And this nebula is not alone on this image…

M8 and M20 – HOO and SHO

2h30 exposure (Ha/OIII/SII):3x10x300s)
Acquired on 3 nights of 2019 (08/25, 09/04 and 09/12)


Setup: Samyang 135mm F/2, AZ-EQ6, QHY163m gain=100, QHYCFW2-M, AstroLink 4 mini, QHY5L2M. Software: APT, Stellarium scope, EQ MOD, PHD2

Summer gives the opportunity to capture wide nebula in narrowband. The result is generally colorful but can also led to excess. Let me know what you prefer with these M8 (Lagoon) and M20 (Trifid) nebulas! HOO or SHO?

Identify asteroids with Aladin and SkyBot

4h40 exposure (L:56x300s)
Acquired on the 28th of February 2019 with Samyang 135mm


Several asteroids in the field of Markarian chain. Samyang 135mm F/2 at F/2.8, QHY163m gain=100

This article depicts a method to identify asteroids on personal photos. This method uses Aladin Desktop software from Strasbourg astronomical Data Center and SkyBot (Sky Body Tracker) from IMCCE (Institut de Mecanique celeste et de calcul des ephemerides) / Paris Observatory. The last part of this article explains how to obtain the orbit as well as the mass of the asteroid using JPL Small-Body Database Browser of NASA.

Identify Quasars with Aladin

4h40 exposure (L:56x300s)
Acquired on the 28th of February 2019 with Samyang 135mm


QSO1224+1349 et QSO1222.9+1334 – 2 Quasars located in the north of Markarian chain. Samyang 135mm F/2 at F/2.8, QHY163m gain=100

This article suggests a method to identify Quasars objects on personal photos. This method, very simple, uses Aladin Desktop software from Strasbourg astronomical Data Center.

Wide field astrophotography

Wide field astrophoto setup
Samyang 135mm F/2

Samyang 135mm - Astrophotographie grand champ
Matériel: Samyang 135mm F/2, Support optique Philippe LECA Concept Impression 3D, QHY163m, QHYCFW2-M, TSL50D 50/180 F/3.6, QHY5L2M, AZ-EQ6

Orion M78 IC434 M42 – Ha

1h40 exposure (Ha:20x300s)
Acquired on the 25th of January 2019

Orion M78 IC434 M42 Samyang 135mm Ha 20x300s
Matériel: Samyang 135mm F/2, AZ-EQ6, QHY163m gain=100, QHYCFW2-M, AstroLink 4 mini, QHY5L2M. Acquisition : APT, Stellarium scope, EQ MOD, PHD2

La constellation d’Orion est l’une des plus belles régions du ciel d’hiver. Sa forme caractéristique en “sablier” se repère aisément les soirées d’hivers.