All names: Gaia EDR3 1155791990165521920, Gaia DR3 1155791990165521920, WISE J151808.50+041043.6, LAMOST J151808.49+041044.7, TIC 461288382, SDSS J151808.47+041043.8, WISEA J151808.49+041043.5, PG 1515+044, PG1515+044, UCAC4 471-051738, GALEX J151808.5+041044, UCAC2 33234185, 2MASS J15180847+0410437, Gaia DR2 1155791990165521920, LAMOST J151808.47+041043.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 18 08.48 (0.03) | 15 18 08.47 | 15 18 08.48 | 15 18 08.48 (0.04) | 15 18 08.48 (0.03) | 15 18 08.48 | |||
| Declination | 04 10 43.77 (0.03) | 04 10 43.85 | 04 10 43.69 | 04 10 43.77 (0.04) | 04 10 43.77 (0.03) | 04 10 43.83 | |||
| Spectral type | sdB+K | sdOB+G1V | SDO | ||||||
| Effective temperature | [K] | 36061.0 (944) | 35245.0 (246) | ||||||
| log(g) | [cgs] | 5.56 (0.1) | 5.44 (0.04) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.54 (0.04) | 0.69 (0.05) | 0.69 (0.05) | 0.54 (0.04) | ||||
| Distance | [pc] | 1846.90 (135) | 1452.01 (110) | 1452.01 (110) | 1847.06 (135) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1.85633171 (0.05) | -2.182 (0.1) | -2.182 (0.1) | -1.856 (0.05) | 2.0 | |||
| Proper motion (declination) | [mas/yr] | 0.253723109 (0.04) | 0.213 (0.1) | 0.213 (0.1) | 0.254 (0.04) | 4.8 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.37 (0) | ||||||||
| V magnitude | 15.42 (0) | ||||||||
| R magnitude | 15.81 (0.06) | ||||||||
| I magnitude | |||||||||
| J magnitude | 14.91 (0.04) | 14.91 (0.04) | |||||||
| H magnitude | 14.62 (0.05) | 14.62 (0.05) | |||||||
| K magnitude | 14.60 (0.1) | 14.60 (0.1) | |||||||
| u magnitude | 15.11 (0.004) | 15.11 (0.004) | 15.11 (0.004) | 15.15 (0.02) | |||||
| g magnitude | 15.22 (0.003) | 15.22 (0.003) | 15.22 (0.003) | 15.28 (0.01) | |||||
| r magnitude | 15.44 (0.003) | 15.44 (0.003) | 15.44 (0.003) | 15.45 (0.02) | |||||
| i magnitude | 15.55 (0.004) | 15.55 (0.004) | 15.55 (0.004) | 15.55 (0.01) | |||||
| z magnitude | 15.63 (0.006) | 15.63 (0.006) | 15.63 (0.006) | 15.63 (0.02) | |||||
| G magnitude | 15.31 (0.002) | 15.33 (0.0008) | 15.33 | 15.31 (0.003) | |||||
| BP magnitude | 15.31 (0.002) | 15.28 (0.01) | 15.28 | ||||||
| RP magnitude | 15.26 (0.003) | 15.26 (0.004) | 15.26 | ||||||
| Pan g magnitude | 15.30 (0.004) | 15.30 (0.004) | |||||||
| Pan r magnitude | 15.47 (0.002) | 15.47 (0.002) | |||||||
| Pan i magnitude | 15.60 (0.002) | 15.60 (0.002) | |||||||
| Pan z magnitude | 15.67 (0.005) | 15.67 (0.005) | |||||||
| Pan y magnitude | 15.73 (0.007) | 15.73 (0.007) | |||||||
| E(B-V) | 0.030 | ||||||||
* 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.