All names: SDSS J012259.53+154253.8, SDSS J012259.56+154253.9, Gaia DR3 2591449199003105152, SDSS J012259.58+154253.9, WD 0120+154, Gaia DR2 2591449199002890368, Gaia EDR3 2591449199003105152, USNO-A2.0 1050-00379849, SDSS J012259.52+154253.8, SDSS J012259.56+154253.8, GALEX J012259.5+154254, SDSS J012259.53+154253.9, WIRED J012259.52+154253.8, 2MASS J01225955+1542534, TIC 385117145, [HHD2009] SDSS J0122+1542
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 22 59.58 (0.2) | 01 22 59.56 | 01 22 59.57 (0.3) | 01 22 59.52 | 01 22 59.53 (0.2) | 01 22 59.54 | 01 22 59.26 | 01 22 59.53 | |||||
| Declination | 15 42 53.87 (0.2) | 15 42 53.87 | 15 42 53.87 (0.3) | 15 42 53.78 | 15 42 53.85 (0.2) | 15 42 53.86 | 15 42 51.12 | 15 42 53.81 | |||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA+M | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 11835.0 (472) | 12320.0 (540) | 10143.0 (86) | 10060.0 (86) | ||||||||
| log(g) | [cgs] | 8.15 (0.2) | 8.25 (0.1) | 8.10 (0.1) | 8.12 (0.1) | ||||||||
| Mass | [M☉] | 0.7 (0.1) | 0.76 (0.07) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.5623 | |||||||||||
| 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] | 4.11 (0.3) | 4.15 (0.3) | 4.11 (0.3) | |||||||||
| Distance | [pc] | 243.46 (15) | 240.79 (20) | 263.00 (36) | 243.46 (15) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 43.70856803 (0.3) | 44.24058481 (0.8) | 43.709 (0.3) | 48.0 | ||||||||
| Proper motion (declination) | [mas/yr] | 1.06461194 (0.2) | 0.976132744 (0.6) | 1.065 (0.2) | 0.8 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | |||||||||
| B magnitude | 18.20 (0.3) | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 18.70 (0.3) | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.59 (0.1) | ||||||||||||
| H magnitude | 16.10 (0.2) | ||||||||||||
| K magnitude | 15.77 (0.07) | ||||||||||||
| u magnitude | 19.43 (0.03) | 19.39 | 19.40 (0.03) | 19.39 (0.03) | 19.37 | 19.37 (0.03) | |||||||
| g magnitude | 18.93 (0.01) | 18.99 | 18.98 (0.01) | 18.99 (0.02) | 18.98 | 19.00 (0.02) | |||||||
| r magnitude | 19.01 (0.01) | 18.99 | 19.02 (0.01) | 18.99 (0.03) | 19.00 | 19.01 (0.03) | |||||||
| i magnitude | 18.57 (0.01) | 18.57 | 18.58 (0.01) | 18.57 (0.03) | 18.56 | 18.58 (0.03) | |||||||
| z magnitude | 18.03 (0.02) | 18.06 | 18.05 (0.03) | 18.06 (0.03) | 18.04 | 18.06 (0.03) | |||||||
| G magnitude | 19.06 (0.02) | 19.00 | 19.06 (0.004) | ||||||||||
| BP magnitude | 19.06 (0.02) | 18.98 | |||||||||||
| RP magnitude | 18.18 (0.02) | 18.13 | |||||||||||
| Pan g magnitude | 18.90 (0.02) | ||||||||||||
| Pan r magnitude | 19.01 (0.01) | ||||||||||||
| Pan i magnitude | 18.65 (0.01) | ||||||||||||
| Pan z magnitude | 18.20 (0.009) | ||||||||||||
| Pan y magnitude | 17.91 (0.007) | ||||||||||||
| E(B-V) | 0.032 | ||||||||||||
* 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.