SDSS J164357.02+240201.3

All names: Gaia EDR3 1300134055594886400, Gaia DR2 1300134055594886400, GALEX J164357.0+240201, Gaia DR3 1300134055594886400, SDSS J164357.02+240201.3, WD 1641+241, SDSS J164357.02+240201.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Kulebi et al. 2009 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 43 57.01 (0.1) 16 43 57.02 16 43 57.01 (0.2) 16 43 57.02 16 43 57.02 (0.1) 16 43 57.02 16 43 56.59 16 43 57.02
Declination 24 02 01.08 (0.2) 24 02 01.33 24 02 01.09 (0.2) 24 02 01.28 24 02 01.35 (0.2) 24 02 01.31 24 01 59.16 24 02 01.31
Spectral type DA DA DA DAH DAP DA_auto DA DAH DA
Effective temperature [K] 17832.0 (781) 13172.0 16500.0 18598.0 (487) 18715.0 (521)
log(g) [cgs] 7.85 (0.2) 7.54 8.00 (0) 7.99 (0.09) 7.99 (0.1)
Mass [M] 0.5365440908075618 (0.1) 0.384
log(Luminosity) [L]
Cooling age [Gyr] 0.1605
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] 1.86 (0.2) 1.97 (0.3) 1.86 (0.2)
Distance [pc] 537.23 (65) 506.34 (75) 537.23 (65)
Composition H H
Proper motion (right ascension) [mas/yr] -9.122903455 (0.2) -8.882375638 (0.5) -9.123 (0.2) -6.4
Proper motion (declination) [mas/yr] -16.92348014 (0.2) -16.67905602 (0.5) -16.923 (0.2) -17.1
Variability
Magnetic yes yes
Bd [MG] 2 2.0 (0)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.44 (0.03) 19.44 (0.03) 19.43 (0.03) 19.43 19.42 (0.03)
g magnitude 19.23 (0.01) 19.23 (0.01) 19.27 (0.02) 19.26 19.24 (0.02)
r magnitude 19.56 (0.01) 19.56 (0.01) 19.58 (0.02) 19.57 19.58 (0.02)
i magnitude 19.81 (0.02) 19.81 (0.02) 19.82 (0.03) 19.81 19.82 (0.02)
z magnitude 20.36 (0.1) 20.36 (0.1) 20.40 (0.2) 20.39 20.39 (0.2)
G magnitude 19.42 (0.02) 19.46 19.42 (0.003)
BP magnitude 19.41 (0.02) 19.41
RP magnitude 19.59 (0.04) 19.65
Pan g magnitude 19.28 (0.006)
Pan r magnitude 19.60 (0.01)
Pan i magnitude 19.86 (0.009)
Pan z magnitude 20.15 (0.05)
Pan y magnitude 19.96 (0.03)
E(B-V) 0.034

* 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.