GALEX 2687006324405834124

All names: Gaia EDR3 1499956309529275008, SDSS J134459.23+403441.9, USNO-A2.0 1275-08307344, GALEX 2687006324405834124, Gaia DR3 1499956309529275008, SDSS J134459.23+403441.8, Gaia DR2 1499956309529275008

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 44 59.24 (0.08) 13 44 59.23 13 44 59.24 (0.09) 13 44 59.24 13 44 59.23 (0.09) 13 44 59.23
Declination 40 34 41.52 (0.09) 40 34 41.87 40 34 41.54 (0.1) 40 34 41.52 40 34 42.01 (0.1) 40 34 41.88
Spectral type DC DC DB DC DC DB
Effective temperature [K] 10730.0 11005.0 11550.0 (321) 11509.0 (216)
log(g) [cgs] 8.09 8.05 8.08 (0.04) 8.54 (0.2)
Mass [M] 0.655 0.61 0.63 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.5661 0.5181
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 5.06 (0.1) 5.23 (0.2) 5.06 5.23 (0.2)
Distance [pc] 197.47 (5) 191.17 (6) 197.47 191.16 (6)
Composition
Proper motion (right ascension) [mas/yr] 6.061677716 (0.09) 6.242354507 (0.2) 6.242 (0.2)
Proper motion (declination) [mas/yr] -30.11120583 (0.1) -30.3586105 (0.2) -30.359 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.90 (0.3)
V magnitude
R magnitude 18.30 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.51 (0.02) 18.51 (0.02) 18.49 (0.02)
g magnitude 18.42 (0.007) 18.42 (0.007) 18.41 (0.04)
r magnitude 18.58 (0.008) 18.58 (0.008) 18.56 (0.02)
i magnitude 18.77 (0.01) 18.77 (0.01) 18.77 (0.02)
z magnitude 18.99 (0.04) 18.99 (0.04) 19.01 (0.05)
G magnitude 18.48 (0.01) 18.52 18.48 18.52 (0.002)
BP magnitude 18.49 (0.01) 18.45
RP magnitude 18.46 (0.02) 18.48
Pan g magnitude 18.46 (0.007)
Pan r magnitude 18.59 (0.009)
Pan i magnitude 18.75 (0.008)
Pan z magnitude 18.93 (0.01)
Pan y magnitude 19.11 (0.03)
E(B-V) 0.016

* Constant surface field

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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.