2MASS J23083372+2240529

All names: 2MASS J23083372+2240529, TIC 245372492, Gaia DR3 2838900235070184448, Gaia DR2 2838900235070184448, Gaia EDR3 2838900235070184448, WD 2306+224, GALEX J230833.6+224053, [SGR2010] J2308+2240, SDSS J230833.71+224052.5, SDSS J230833.71+224052.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Stilism sdss-wdms.org (29/04/2016) Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 23 08 33.72 (0.2) 23 08 33.71 23 08 33.72 23 08 33.72 (0.2) 23 08 33.46
Declination 22 40 52.68 (0.2) 22 40 52.64 22 40 52.68 22 40 52.78 (0.2) 22 40 51.96
Spectral type DC+M DC+M1 DC+M1
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.56 (0.2) 0.56 (0.2)
Distance [pc] 1800.67 (686) 1800.83 (686)
Composition
Proper motion (right ascension) [mas/yr] -1.737220463 (0.2) -1.737 (0.2)
Proper motion (declination) [mas/yr] -6.014481602 (0.2) -6.014 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS yes
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.55 (0.1)
H magnitude 15.65 (0.1)
K magnitude 15.13 (0.1)
u magnitude 20.05 (0.04) 20.00 20.05 (0.04) 20.02
g magnitude 19.59 (0.01) 19.57 19.59 (0.01) 19.58
r magnitude 18.83 (0.01) 18.81 18.83 (0.01) 18.81
i magnitude 18.22 (0.009) 18.19 18.22 (0.009) 18.19
z magnitude 17.83 (0.02) 17.80 17.83 (0.02) 17.80
G magnitude 18.68 (0.04) 18.68 (0.003)
BP magnitude 19.16 (0.04)
RP magnitude 17.79 (0.02)
Pan g magnitude 19.52 (0.01)
Pan r magnitude 18.80 (0.009)
Pan i magnitude 18.20 (0.01)
Pan z magnitude 17.92 (0.007)
Pan y magnitude 17.70 (0.009)
E(B-V) 0.052

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit




The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.