Gaia DR2 917707418778058368

All names: Gaia DR2 917707418778058368, WDJ082923.14+441941.39, J0829+4419, Gaia EDR3 917707418778058368, Gaia DR3 917707418778058368, SDSS J082923.13+441941.2, SDSS J082923.13+441941.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 08 29 23.02 (0.2) 08 29 23.02 08 29 23.02 08 29 23.14 (0.2) 08 29 23.02
Declination 44 19 39.86 (0.1) 44 19 39.91 44 19 39.86 44 19 41.40 (0.1) 44 19 39.91
Spectral type DC DC DC DA DC
Effective temperature [K] 5756.0 (38) 6072.0 (41) 5757.0 (38) 6267.0 6025.0 6378.0 (135)
log(g) [cgs] 7.98 (0.03) 8.14 (0.03) 7.95 (0.03) 8.25 8.12 8.33 (0.04)
Mass [M] 0.558 (0.02) 0.659 (0.02) 0.542 (0.02) 0.745 0.644 0.798 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 3.4400 3.5180 3.3160
log(H/He) -3.0 -3
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 13.40 (0.2) 13.18 (0.3) 13.18 (0.3) 13.40 13.40 (0.2) 13.18 (0.3)
Distance [pc] 74.63 (1) 75.87 (2) 75.89 (2) 74.63 74.63 (1) 75.89 (2)
Composition He
Proper motion (right ascension) [mas/yr] -81.58909163 (0.2) -81.82843359 (0.4) -81.589 (0.2) -81.82843359
Proper motion (declination) [mas/yr] -95.93587503 (0.2) -95.83684447 (0.3) -95.936 (0.2) -95.83684447
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.88 (0.05)
H magnitude
K magnitude
u magnitude 19.70 (0.03) 19.70 (0.03) 19.70 (0.03)
g magnitude 18.90 (0.009) 18.97 (0.01)
r magnitude 18.59 (0.009) 18.61 (0.009)
i magnitude 18.50 (0.01) 18.50 (0.01)
z magnitude 18.51 (0.03) 18.56 (0.04)
G magnitude 18.60 (0.02) 18.63 18.60 18.60 (0.003) 18.63
BP magnitude 18.91 (0.02) 18.88 18.88
RP magnitude 18.23 (0.02) 18.20 18.20
Pan g magnitude 18.89 (0.007) 18.89 (0.006)
Pan r magnitude 18.60 (0.009) 18.60 (0.008)
Pan i magnitude 18.51 (0.005) 18.51 (0.005)
Pan z magnitude 18.52 (0.008) 18.52 (0.01)
Pan y magnitude 18.53 (0.03) 18.53 (0.03)
E(B-V) 0.002

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.