LAWD 88

All names: TIC 264404583, G261-45, WD 2136+828, uvby98 980261045, G 261-45, LHS 3687, PM J21337+8303, ASCC 58392, G 265-41, PLX 5239.1, GEN# +9.80261045, LFT 1649, Gaia EDR3 2300234782654298624, PLX 5239.10, WD 2136+82, UBV 18654, UBV M 43028, LTT 16324, GJ 9746, UBV M 42735, GJ 836.2, LSPM J2133+8303, WISEA J213344.96+830338.3, 21337+8303, USNO-B1.0 1730-00048838, USNO 270, 2MASS J21334325+8303323, Gaia DR2 2300234782654298624, CSI+82-21364, AC +82 3818, EGGR 147, Gaia DR3 2300234782654298624, WDJ213343.31+830332.43, AC +82 3818-0, NLTT 51738, LAWD 88

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 McCleery et al. 2020 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Limoges et al. 2015 Gianninas et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 21 33 45.81 (0.02) 21 33 45.73 (0.03) 21 33 45.73 (0.03) 21 33 45.81 21 33 43.31 (0.02) 21 33 45.73 21 33 36.74
Declination 83 03 41.51 (0.02) 83 03 41.23 (0.04) 83 03 41.23 (0.04) 83 03 41.51 83 03 32.43 (0.02) 83 03 41.23 83 03 16.20
Spectral type DA DA DA DA DA DA DA DA2.8 DA3
Effective temperature [K] 17488.0 (324) 17312.3 (133) 17819.0 17698.0 (263) 17780.0 (264) 17700.0 (263) 18320.0 (142)
log(g) [cgs] 7.93 (0.02) 7.92 (0.01) 7.96 7.97 (0.04) 7.99 (0.05) 7.97 (0.04) 7.99 (0.006)
Mass [M] 0.579 (0.01) 0.597 0.61 (0.2) 0.61 (0.03) 0.6 (0.03) 0.612 (0.005)
log(Luminosity) [L] -1.81
Cooling age [Gyr] 0.1014
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] 37.85 (0.02) 37.85 (0.02) 37.86 (0.04) 37.86 (0.04) 38.40 (4) 37.85 37.85 (0.02) 37.86 (0.04) 47.00
Distance [pc] 26.42 (0.02) 26.42 (0.01) 26.41 (0.03) 26.41 (0.03) 26.00 (3) 26.00 (3) 26.00 26.42 26.42 (0.02) 26.41 (0.03) 21.28
Composition H H H H
Proper motion (right ascension) [mas/yr] 282.8491655 (0.03) 282.6932538 (0.06) 282.849 (0.03) 282.6932538
Proper motion (declination) [mas/yr] 567.3901786 (0.03) 567.3880466 (0.07) 567.39 (0.03) 567.3880466
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 13.00
V magnitude
R magnitude 13.50
I magnitude
J magnitude 13.45 (0.02)
H magnitude 13.49 (0.04)
K magnitude 13.50 (0.04)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.05 (0.0006) 13.07 13.07 13.05 13.05 (0.003) 13.07
BP magnitude 12.98 (0.0006) 12.96 12.96
RP magnitude 13.20 (0.0008) 13.20 13.20
Pan g magnitude 12.87 (0.01)
Pan r magnitude 13.25 (0.005)
Pan i magnitude 13.54 (0.001)
Pan z magnitude 13.75 (0.02)
Pan y magnitude 13.94 (0.004)
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.