NLTT 48779

All names: 2MASS J20065488+6143104, TIC 256866809, NLTT 48779, Gaia DR2 2237893023118101504, SDSS J200655.04+614309.3, WD 2006+615, Gaia DR3 2237893023118101504, LSPM J2006+6143, WDJ200654.88+614310.27, Gaia EDR3 2237893023118101504, J2006+6143, PSO J301.7301+61.7188, USNO-B1.0 1517-00277372, 20069+6143, PM J20069+6143, GALEX J200655.0+614309, LP 105-557

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 MWDD H Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 20 06 55.26 (0.07) 20 06 55.25 (0.08) 20 06 55.25 (0.08) 20 06 55.26 20 06 54.88 (0.07) 20 06 55.25 20 06 54.38
Declination 61 43 07.67 (0.07) 61 43 07.75 (0.08) 61 43 07.75 (0.08) 61 43 07.67 61 43 10.27 (0.07) 61 43 07.75 61 43 09.48
Spectral type DA DA DA DA DA DA DA DA DC
Effective temperature [K] 5330.0 (31) 5297.0 (7) 5250.0 (20) 5305.0 (25) 5327.0 5540.0 (91) 5301.0 (19)
log(g) [cgs] 7.40 (0.03) 7.32 (0.006) 7.34 (0.02) 7.33 (0.02) 7.34 8.00 (0) 7.32 (0.009)
Mass [M] 0.315 (0.009) 0.264 (0.003) 0.269 (0.006) 0.273 0.58 (0.1) 0.267 (0.005)
log(Luminosity) [L] -3.87
Cooling age [Gyr] 1.4400 1.4540 (0.03) 1.4510
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] 30.01 (0.07) 30.01 (0.07) 29.84 (0.09) 29.84 (0.09) 29.84 (0.09) 29.84 (0.09) 30.01 30.01 (0.07) 29.84 (0.09)
Distance [pc] 33.32 (0.08) 33.32 (0.08) 33.51 (0.1) 33.51 (0.1) 33.51 (0.1) 33.51 (0.1) 26.20 (0.5) 33.32 33.32 (0.08) 33.51 (0.1)
Composition H H H H H
Proper motion (right ascension) [mas/yr] 171.8048366 (0.1) 171.9841879 (0.2) 171.805 (0.1) 171.9841879
Proper motion (declination) [mas/yr] -162.4827971 (0.08) -162.1814818 (0.2) -162.483 (0.08) -162.1814818
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.50
V magnitude
R magnitude 16.20
I magnitude
J magnitude 15.17 (0.04) 15.17 (0.04) 15.17 15.17 (0.04)
H magnitude 14.90 (0.07) 14.90 (0.07) 14.90 14.90 (0.07)
K magnitude 14.68 (0.1) 14.68 (0.1) 14.68 14.68 (0.1)
u magnitude 18.18 (0.02) 18.16 18.18 (0.02) 18.18 (0.02)
g magnitude 16.91 16.84 (0.002) 16.92 (0.004)
r magnitude 16.34 16.34 (0.003) 16.35 (0.004)
i magnitude 16.13 16.14 (0.002) 16.13 (0.004)
z magnitude 16.06 16.09 (0.004) 16.07 (0.007)
G magnitude 16.36 (0.004) 16.37 16.37 16.36 16.36 (0.003) 16.37
BP magnitude 16.76 (0.004) 16.78 16.78
RP magnitude 15.79 (0.003) 15.80 15.80
Pan g magnitude 16.84 (0.002) 16.84 (0.002) 16.84 (0.002)
Pan r magnitude 16.34 (0.002) 16.34 (0.003) 16.34 (0.003)
Pan i magnitude 16.14 (0.002) 16.14 (0.002) 16.14 (0.002)
Pan z magnitude 16.09 (0.004) 16.09 (0.004) 16.09 (0.004)
Pan y magnitude 16.05 (0.004) 16.05 (0.005) 16.05 (0.005)
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.