2MASS J19492350+0747318

All names: PM J19493+0747, LSPM J1949+0747, WDJ194923.50+074731.69, 19493+0747, 2MASS J19492350+0747318, Gaia DR2 4298029268399256704, USNO-B1.0 0977-00638254, Gaia EDR3 4298029268399256704, Gaia DR3 4298029268399256704, J1949+0747, TIC 69872638

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 MWDD H Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 19 49 23.64 (0.02) 19 49 23.64 (0.03) 19 49 23.64 (0.03) 19 49 23.64 19 49 23.50 (0.02) 19 49 23.64
Declination 07 47 29.71 (0.02) 07 47 29.78 (0.02) 07 47 29.78 (0.02) 07 47 29.71 07 47 31.69 (0.02) 07 47 29.78
Spectral type DA DA DA DA DA DA DA
Effective temperature [K] 9245.0 (81) 9219.0 (32) 9216.1 (44) 9090.0 9310.0 (134) 9104.0 (44)
log(g) [cgs] 8.08 (0.02) 8.08 (0.005) 8.08 (0.01) 8.05 8.19 (0.06) 8.05 (0.008)
Mass [M] 0.645 (0.01) 0.646 (0.005) 0.627 0.71 (0.04) 0.629 (0.007)
log(Luminosity) [L] -3.07
Cooling age [Gyr] 0.8700 0.8296
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] 27.37 (0.03) 27.37 (0.03) 27.37 (0.04) 27.37 (0.04) 27.37 (0.04) 27.37 27.37 (0.03) 27.37 (0.04)
Distance [pc] 36.53 (0.04) 36.54 (0.04) 36.54 (0.05) 36.53 (0.05) 36.53 (0.05) 36.20 (1) 36.53 36.53 (0.04) 36.53 (0.05)
Composition H H H H
Proper motion (right ascension) [mas/yr] 128.0352708 (0.03) 127.9762841 (0.06) 128.035 (0.03) 127.9762841
Proper motion (declination) [mas/yr] -123.4606783 (0.03) -123.4659845 (0.05) -123.461 (0.03) -123.4659845
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.10
V magnitude
R magnitude 15.60
I magnitude
J magnitude 15.16 (0.006) 15.21 15.21 (0.06)
H magnitude 15.27 (0.1) 15.27 15.27 (0.1)
K magnitude 15.17 (0.2) 15.17 15.17 (0.2)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.37 (0.002) 15.39 15.39 15.37 15.37 (0.003) 15.39
BP magnitude 15.45 (0.002) 15.44 15.44
RP magnitude 15.22 (0.001) 15.23 15.23
Pan g magnitude 15.43 (0.003) 15.43 (0.003)
Pan r magnitude 15.45 (0.003) 15.45 (0.003)
Pan i magnitude 15.55 (0.003) 15.55 (0.003)
Pan z magnitude 15.68 (0.003) 15.68 (0.003)
Pan y magnitude 15.77 (0.005) 15.77 (0.005)
E(B-V) 0.001

* 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.