WD 1722+541

All names: SDSS J172329.14+540755.7, Gaia EDR3 1419410069111484928, GALEX J172329.1+540755, Gaia DR3 1419410069111484928, SDSS J172329.15+540755.8, Gaia DR2 1419410069111484928, SDSS J172329.14+540755.8, WD 1722+541

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 Harris et al. 2003 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 23 29.22 (0.1) 17 23 29.14 17 23 29.22 (0.2) 17 23 29.14 17 23 29.22 17 23 29.14 (0.1) 17 23 29.16 17 23 28.51 17 23 29.14
Declination 54 07 54.74 (0.2) 54 07 55.77 54 07 54.77 (0.2) 54 07 55.81 54 07 54.74 54 07 55.78 (0.2) 54 07 55.87 54 07 54.84 54 07 55.82
Spectral type DAH DA DA DAH DAH DA DAH DAH DAH3.1 DAH DAH:
Effective temperature [K] 11269.8 (315) 10402.0 10000.0 9971.0 (488) 10149.0 (82) 10157.0 (92)
log(g) [cgs] 8.90 (0.05) 8.82 8.00 (0) 8.76 (0.07) 8.56 (0.4) 9.15 (0.5)
Mass [M☉] 1.1510898726124426 (0.05) 1.112 1.08 (0.05)
log(Luminosity) [L☉]
Cooling age [Gyr] 2.1520
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] 8.60 (0.2) 8.55 (0.2) 8.60 8.60 (0.2)
Distance [pc] 116.33 (2) 116.92 (3) 116.33 116.33 (2)
Composition H H
Proper motion (right ascension) [mas/yr] 43.05139801 (0.2) 43.26285179 (0.3) 43.051 (0.2) 42.4
Proper motion (declination) [mas/yr] -65.15610258 (0.2) -65.42125648 (0.5) -65.156 (0.2) -67.5
Variability
Magnetic yes yes yes yes yes yes
Bd [MG] 39.177434690953376 32.85 (4) 32.85 (4)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.10 (0.02) 19.10 19.10 (0.02) 19.09 (0.03) 19.14 19.09 (0.03)
g magnitude 18.79 (0.008) 18.78 18.79 (0.008) 18.79 (0.03) 18.81 18.80 (0.02)
r magnitude 18.86 (0.01) 18.85 18.86 (0.01) 18.84 (0.02) 18.90 18.83 (0.02)
i magnitude 19.02 (0.01) 19.01 19.02 (0.01) 19.02 (0.02) 19.04 19.03 (0.02)
z magnitude 19.25 (0.06) 19.27 19.25 (0.06) 19.25 (0.07) 19.30 19.27 (0.06)
G magnitude 18.80 (0.03) 18.84 18.80 18.80 (0.004)
BP magnitude 18.91 (0.03) 18.85
RP magnitude 18.71 (0.03) 18.70
Pan g magnitude 18.78 (0.009)
Pan r magnitude 18.90 (0.01)
Pan i magnitude 19.06 (0.004)
Pan z magnitude 19.16 (0.03)
Pan y magnitude 19.30 (0.05)
E(B-V) 0.019

* 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.