All names: IRAS 09301+8132, UBV 9027, Gaia EDR3 1144716265942885888, UBV M 15418, TD1 13941, GCRV 6182, HD 81817, GEN# +1.00081817, GC 13174, HR 3751, PPM 1634, JP11 1815, ROT 1473, TYC 4547-2323-1, GSC 04547-02323, 2RXP J093708.8+811940, SKY# 18598, RAFGL 1363, PLX 2251.00, FK5 910, AG+81 278, SAO 1551, WD 0930+815, N30 2272, TIC 137603530, PMC 90-93 643, WEB 8877, BD+81 302, [HFE83] 663, WD 0937+813, PLX 2251, Gaia DR3 1144716265942885888, 2MASS J09370531+8119349, HIC 47193, HIP 47193, Gaia DR2 1144716265940854016, DO 32868
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 09 37 05.17 (0.1) | 09 37 05.18 (0.2) | 09 37 05.29 (0.1) | 09 37 05.26 | ||
| Declination | 81 19 34.71 (0.1) | 81 19 34.71 (0.3) | 81 19 34.97 (0.1) | 81 19 35.40 | ||
| Spectral type | K3II-III | DA3 | ||||
| Effective temperature | [K] | |||||
| log(g) | [cgs] | |||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 3.54 (0.2) | 3.72 (0.3) | 3.28 (0.1) | ||
| Distance | [pc] | 282.30 (14) | 268.98 (21) | 304.88 (14) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -16.34022945 (0.2) | -16.794 (0.6) | -16.62 (0.2) | ||
| Proper motion (declination) | [mas/yr] | -16.60771236 (0.2) | -17.605 (0.5) | -16.41 (0.1) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | yes | |||||
| B magnitude | 5.74 (0.01) | |||||
| V magnitude | 4.25 (0.009) | |||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 1.70 (0.2) | |||||
| H magnitude | 0.89 (0.2) | |||||
| K magnitude | 0.78 (0.2) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 3.79 (0.005) | 3.71 | 3.79 (0.003) | |||
| BP magnitude | 4.57 (0.005) | 4.60 | ||||
| RP magnitude | 2.95 (0.003) | 3.00 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.016 | |||||
* 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.