XO-2Nb



IMAGE DETAILS

Object ............................................ XO-2Nb
Constellation ..............................  Lynx
V. Magnitude /Depth ..................11.18 / 0.0124
Period (days) ................................2.61586178

RA / DEC ..................................... 07h:48m.07sec / +50° 13m.33ec
Eclipse duration ..........................162 minutes
Distance ........................................  149
±4 pc
Spectral type / Temperature....... K0V / 5340 K (
± 32)
Comparison star .........................  XO-2S
Check star ....................................  GSC 3413:32

Date + Time ................................  22/02/2017  - 17:18UTC / 22:30 UTC
Location .................................... 
"Nunki Observatory" - Skiathos
Optics .........................................  
Officina Stellare Advanced RILA 400 f/5.25
Tools ..........................................   ACP
Camera ......................................  
 SBIG STXL11002  with FW8G-STXL (Astrodon filters)
Exposure Time.........................    Rc (Atrodon Photometric): 206 X 60  Sec
Mount .......................................   Paramount ME
Guiding ....................................   Unguided
Processing Details ..................   Maxim , HOPS.
More Details ...........................    Environment Temperature : 10° C Camera Temperature -35° C
Sky temperature .....................   -20.5°
Notes ........................................   Weather: Clear  Transparence:
Medium  Humidity : 75-80 %
Moon Illumination ...............    19%

Amateur astronomers on duty : Nikolaos I. Paschalis
Analysing Software                   :  Ang
elos Tsiaras

Target details ......................... XO-2N b
(or rarely XO-2Bb) is an extrasolar planet orbiting the star XO-2N, the fainter component of XO-2 wide binary star in the constellation Lynx.This planet was found by transit method in 2007 by Burke et al. This was the second such planet found by the XO telescope.
Like most planets found by the transit method, it is a roughly Jupiter sized planet that orbits very close to its host star; in this case, it has a surface temperature of about 1200 K, so it belongs to a group of exoplanets known as hot Jupiters. The planet takes 2.6 days to orbit the star at the average distance of 0.0369 AU. The planet has mass of 57% of Jupiter and radius of 97% of Jupiter. The radius is relatively large for its mass, probably due to its intense heating from its nearby star that bloats the planet’s atmosphere. The large radius for its mass gives a low density of 820 kg/m.

© Nikos Paschalis