Gaia DR2 4073522222505044224

All names: Gaia DR2 4073522222505044224, Gaia EDR3 4073522222505044224, LEP1857-2650B, WDJ18579.09-265059.21, WDJ185709.09-265059.22, TIC 91643437, Gaia DR3 4073522222505044224, 185709.09-265059.22, 2MASS J18570906-2650591, SCR J1857-2650B, J1857-2651

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 O'Brien et al. 2022 Subasavage et al. 2022 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 18 57 09.43 (0.05) 18 57 09.42 18 57 09.43 18 57 09.09 (0.05) 18 57 09.42
Declination -26 51 00.75 (0.05) -26 51 00.71 -26 51 00.75 -26 50 59.22 (0.05) -26 51 00.71
Spectral type DA DA DA DA DA DA
Effective temperature [K] 7020.0 (61) 6915.0 (28) 7020.0 (60) 7044.0 (195) 6922.0 6667.0 7251.0 (55)
log(g) [cgs] 7.97 (0.03) 7.95 (0.007) 7.97 (0.03) 8.01 (0.05) 7.96 7.83 8.04 (0.01)
Mass [M] 0.573 (0.02) 0.565 (0.006) 0.596 (0.04) 0.566 0.479 0.615 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 1.5100 1.4680 1.4330
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] 25.31 (0.06) 25.31 (0.06) 25.33 (0.07) 25.31 (0.06) 25.33 (0.07) 25.33 (0.07) 25.31 25.31 (0.06) 25.33 (0.07)
Distance [pc] 39.51 (0.09) 39.51 (0.09) 39.48 (0.1) 39.51 (0.09) 39.48 (0.1) 39.48 (0.1) 39.51 39.51 (0.09) 39.48 (0.1)
Composition H H
Proper motion (right ascension) [mas/yr] 287.7942135 (0.06) 287.7879388 (0.1) 287.794 (0.06) 287.7879388
Proper motion (declination) [mas/yr] -95.88391622 (0.05) -95.95872494 (0.1) -95.884 (0.05) -95.95872494
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.83 16.86
V magnitude 16.49
R magnitude 16.27 16.32
I magnitude 16.01 16.29
J magnitude 15.68 (0.06) 15.68 15.68 (0.06)
H magnitude 15.51 (0.1) 15.51 15.51 (0.1)
K magnitude 15.54 (0.2) 15.54 15.54 (0.2)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.36 (0.004) 16.37 16.36 16.36 (0.003) 16.37
BP magnitude 16.54 (0.004) 16.52 16.52
RP magnitude 16.02 (0.003) 16.02 16.02
Pan g magnitude 16.59 (0.003) 16.59 (0.004)
Pan r magnitude 16.41 (0.005) 16.41 (0.005)
Pan i magnitude 16.37 (0.004) 16.37 (0.004)
Pan z magnitude 16.42 (0.002) 16.42 (0.002)
Pan y magnitude 16.45 (0.007) 16.45 (0.007)
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.