All names: USNO-B1.0 1683-00054877, PM J12145+7822, Gaia EDR3 1717341818608187648, NLTT 30084, Gaia DR3 1717341818608187648, TIC 427587075, 2MASS J12143183+7822559, LP 20-214, Gaia DR2 1717341818608187648, 12145+7822, PSO J183.6350+78.3812, LSPM J1214+7822, WDJ121431.83+782256.54, J1214+7822
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Blouin & Xu 2022 | McCleery et al. 2020 | Coutu et al. 2019 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 12 14 32.47 (0.08) | 12 14 32.45 (0.1) | 12 14 31.83 | 12 14 32.45 (0.1) | 12 14 32.47 | 12 14 31.83 (0.08) | 12 14 32.45 | |||||||||
Declination | 78 22 52.32 (0.07) | 78 22 52.45 (0.08) | 78 22 56.54 | 78 22 52.45 (0.08) | 78 22 52.32 | 78 22 56.54 (0.07) | 78 22 52.45 | |||||||||
Spectral type | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DC: | DZ | |||||||
Effective temperature | [K] | 4835.0 (59) | 4895.0 (31) | 4911.0 (41) | 4804.1 (44) | 4329.0 (61) | 4210.0 (20) | 4890.0 | 5000.0 (656) | 4875.0 (33) | ||||||
log(g) | [cgs] | 7.86 (0.05) | 7.91 (0.01) | 7.92 (0.03) | 7.85 (0.04) | 7.48 | 7.51 (0.02) | 7.91 | 8.00 (0) | 7.90 (0.02) | ||||||
Mass | [M☉] | 0.497 (0.03) | 0.514 (0.01) | 0.534 (0.01) | 0.3078 | 0.318 (0.009) | 0.527 | 0.58 (0.1) | 0.517 (0.01) | |||||||
log(Luminosity) | [L☉] | -4.05 | ||||||||||||||
Cooling age | [Gyr] | 5.3500 | 5.4800 | 3.2200 | 3.5510 (0.1) | 5.1880 | ||||||||||
log(H/He) | <-30.0 | |||||||||||||||
log(C/He) | ||||||||||||||||
log(Ca/He) | -11.2283 (0.1) | -11.2 | -11.87 | |||||||||||||
log(Ca/H) | -9.4 | -9.13 (0.07) | ||||||||||||||
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] | 30.63 (0.08) | 30.63 (0.08) | 30.60 (0.1) | 30.63 (0.08) | 30.60 (0.1) | 30.60 | 30.60 (0.1) | 30.60 (0.1) | 30.63 | 30.63 (0.08) | 30.60 (0.1) | ||||
Distance | [pc] | 32.65 (0.09) | 32.65 (0.09) | 32.68 (0.1) | 32.65 (0.09) | 32.68 (0.1) | 32.68 (0.1) | 32.68 (0.1) | 32.68 (0.1) | 32.90 (6) | 32.65 | 32.65 (0.09) | 32.68 (0.1) | |||
Composition | H | H | He | He | He | H | ||||||||||
Proper motion (right ascension) | [mas/yr] | 120.8142295 (0.1) | 120.4445682 (0.2) | 135.0 | 120.814 (0.1) | 120.4445682 | ||||||||||
Proper motion (declination) | [mas/yr] | -263.6341682 (0.1) | -263.5868723 (0.2) | -256.0 | -263.634 (0.1) | -263.5868723 | ||||||||||
Variability | ||||||||||||||||
Magnetic | ||||||||||||||||
Bd | [MG] | |||||||||||||||
Infrared excess (disk) | ||||||||||||||||
Binarity | ||||||||||||||||
B magnitude | 18.00 | |||||||||||||||
V magnitude | ||||||||||||||||
R magnitude | 17.20 | |||||||||||||||
I magnitude | ||||||||||||||||
J magnitude | 16.18 (0.09) | 16.18 (0.1) | 16.18 | 16.18 (0.1) | ||||||||||||
H magnitude | 15.65 (0.2) | 15.65 (0.2) | 15.65 | 15.65 (0.2) | ||||||||||||
K magnitude | 15.64 (0.2) | 15.64 (0.2) | 15.64 | 15.64 (0.2) | ||||||||||||
u magnitude | ||||||||||||||||
g magnitude | 18.05 (0.02) | |||||||||||||||
r magnitude | 17.38 (0.004) | |||||||||||||||
i magnitude | 17.12 (0.005) | |||||||||||||||
z magnitude | 17.03 (0.003) | |||||||||||||||
G magnitude | 17.42 (0.01) | 17.44 | 17.44 | 17.42 | 17.42 (0.003) | 17.44 | ||||||||||
BP magnitude | 17.94 (0.01) | 17.95 | 17.95 | |||||||||||||
RP magnitude | 16.76 (0.007) | 16.77 | 16.77 | |||||||||||||
Pan g magnitude | 18.08 (0.01) | 18.05 (0.02) | 18.05 (0.02) | 18.05 (0.02) | ||||||||||||
Pan r magnitude | 17.37 (0.01) | 17.38 (0.004) | 17.38 (0.004) | 17.38 (0.004) | ||||||||||||
Pan i magnitude | 17.10 (0.01) | 17.12 (0.005) | 17.12 (0.005) | 17.12 (0.005) | ||||||||||||
Pan z magnitude | 17.00 (0.004) | 17.03 (0.003) | 17.03 (0.003) | 17.03 (0.003) | ||||||||||||
Pan y magnitude | 16.99 (0.01) | 17.00 (0.02) | 17.00 (0.02) | 17.00 (0.02) | ||||||||||||
E(B-V) | 0.002 |
* Constant surface field
Spectra without link are available upon request
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.