WD 0240-077

All names: WD 0240-077, SDSS J024241.81-073037.9, Gaia DR3 5177576448194223232, GALEX J024241.7-073037, SDSS J024241.81-073038.0, Gaia DR2 5177576448194223232, Gaia EDR3 5177576448194223232, SDSS J024241.82-073038.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 02 42 41.82 (0.2) 02 42 41.81 02 42 41.82 (0.3) 02 42 41.81 02 42 41.81 (0.2) 02 42 41.81 02 42 40.97 02 42 41.81 02 42 41.81
Declination -07 30 38.15 (0.2) -07 30 37.99 -07 30 38.14 (0.3) -07 30 38.02 -07 30 38.00 (0.2) -07 30 37.92 -07 30 34.20 -07 30 37.96 -07 30 37.94
Spectral type DA+M: DA+M: DA DA+M DA DA1.8 DA+M DA
Effective temperature [K] 23596.0 27111.0 (787) 28020.0 (710) 27496.0 (375) 27496.0 (450) 27541.0 (376)
log(g) [cgs] 8.14 7.76 (0.1) 7.69 (0.1) 7.86 (0.08) 7.81 (0.08) 7.88 (0.08)
Mass [M] 0.714 0.52 (0.06) 0.49 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.0466 0.0123
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 1.72 (0.2) 2.26 (0.4) 1.72 (0.2)
Distance [pc] 582.04 (82) 441.98 (72) 582.04 (82)
Composition H H
Proper motion (right ascension) [mas/yr] 7.349414608 (0.3) 7.416718975 (0.5) 7.349 (0.3) 2.9 2.0
Proper motion (declination) [mas/yr] -9.382788068 (0.2) -9.677286781 (0.5) -9.383 (0.2) -12.0 -12.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.50 (0.02) 18.54 18.50 (0.02) 18.54 (0.03) 18.56 18.54 (0.03) 18.56 (0.03)
g magnitude 18.68 (0.008) 18.72 18.68 (0.008) 18.72 (0.02) 18.72 18.72 (0.02) 18.72 (0.02)
r magnitude 19.12 (0.01) 19.13 19.12 (0.01) 19.13 (0.02) 19.13 19.12 (0.02) 19.13 (0.02)
i magnitude 19.51 (0.03) 19.51 19.51 (0.03) 19.51 (0.04) 19.51 19.51 (0.04) 19.51 (0.04)
z magnitude 19.62 (0.09) 19.68 19.62 (0.09) 19.68 (0.1) 19.68 19.68 (0.1) 19.68 (0.1)
G magnitude 18.92 (0.03) 18.97 18.92 (0.004)
BP magnitude 18.85 (0.03) 18.77
RP magnitude 19.24 (0.06) 19.11
Pan g magnitude 18.75 (0.01)
Pan r magnitude 19.13 (0.007)
Pan i magnitude 19.49 (0.01)
Pan z magnitude 19.73 (0.02)
Pan y magnitude 19.80 (0.1)
E(B-V) 0.024

* 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.