Gaia DR2 1809844934461976832

All names: UCAC4 539-122231, GCRV 70442, EM* CDS 1133, uvby98 620020136, PLX 4778.00, Gaia DR2 1809844934461976832, 2MASS J20073649+1742147, PLX 4778, V*WZ Sge, 2E 2005.3+1733, FB 173, 1ES 2005+17.5, Gaia EDR3 1809844934461976832, 3XMM J200736.5+174213, TIC 86408822, NOVA Sge 1946, WEB 17643, UBV 17296, 1RXS J200736.4+174217, WDJ200736.50+174214.73, Lan 50, NOVA Sge 1913, WDJ200736.5+174214.73, EGGR 136, AAVSO 2003+17, SBC9 1204, NOVA Sge 1978, WD 2003+17, Gaia DR3 1809844934461976832, 2005+175, 2E 4322, CSI+17-20053 2, SV* HV 3518, V* WZ Sge

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Leggett et al. 2018 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 20 07 36.58 (0.02) 20 07 36.58 20 07 36.58 20 07 36.50 (0.02) 20 07 36.58
Declination 17 42 14.34 (0.02) 17 42 14.36 17 42 14.34 17 42 14.73 (0.02) 17 42 14.36
Spectral type DC: D
Effective temperature [K] 9557.0 9680.0 9419.0 (86)
log(g) [cgs] 7.68 7.64 7.54 (0.02)
Mass [M] 0.432 0.391 0.35 (0.009)
log(Luminosity) [L]
Cooling age [Gyr] 0.4686 0.4423
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 22.10 (0.03) 22.13 (0.2) 22.16 (0.04) 22.10 22.10 (0.03) 22.16 (0.04)
Distance [pc] 45.24 (0.06) 45.19 (0.4) 45.13 (0.08) 45.24 45.24 (0.06) 45.13 (0.08)
Composition
Proper motion (right ascension) [mas/yr] 71.50556974 (0.03) 71.63532012 (0.06) 71.506 (0.03) 71.63532012
Proper motion (declination) [mas/yr] -24.3289588 (0.02) -24.34813333 (0.04) -24.329 (0.02) -24.34813333
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.30
V magnitude 15.20
R magnitude 10.82 (0.9)
I magnitude
J magnitude 14.86 (0.04)
H magnitude 14.56 (0.05)
K magnitude 14.00 (0.06)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.18 (0.009) 15.21 15.18 15.18 (0.004) 15.21
BP magnitude 15.23 (0.009) 15.21 15.21
RP magnitude 15.06 (0.01) 15.06 15.06
Pan g magnitude 15.15 (0.02)
Pan r magnitude 15.22 (0.01)
Pan i magnitude 15.42 (0.03)
Pan z magnitude 15.59 (0.02)
Pan y magnitude 15.50 (0.01)
E(B-V) 0.003

* 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.