WD 1304+22
All names: WDJ130715.55+222719.44, GALEX J130715.5+222720, ULAS J130715.49+222720.3, Gaia EDR3 3944621251683633024, Gaia DR3 3944621251683633024, UCAC3 225-114279, 2MASS J13071557+2227193, J1307+2227, LP 378-537, Gaia DR2 3944621251683633024, SDSS J130715.52+222719.8, BD+23 2539B, USNO-B1.0 1124-00248411, WDS J13072+2227B, SDSS J1307+2227, TIC 347389664, IDS 13024+2259 B, UCAC4 563-051936, SDSS J130715.51+222719.8, CCDM J13072+2227B, WD 1304+227, WD 1304+22, ** LDS 2900B
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Bedard et al. 2017 | Tremblay et al. 2017 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 07 15.44 (0.05) | 13 07 15.44 (0.08) | 13 07 15.44 | 13 07 15.55 (0.05) | 13 07 15.44 | 13 07 13.87 | |||||||||
| Declination | 22 27 20.72 (0.05) | 22 27 20.68 (0.05) | 22 27 20.72 | 22 27 19.44 (0.05) | 22 27 20.68 | 22 26 59.28 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA5 | DA | ||||||
| Effective temperature | [K] | 10429.0 (78) | 10428.0 (78) | 10313.0 | 11119.0 (173) | 10280.0 (180) | 10460.0 (179) | 10588.0 (110) | |||||||
| log(g) | [cgs] | 8.01 (0.01) | 8.02 (0.01) | 8.00 | 8.21 (0.05) | 8.21 (0.09) | 8.46 (0.09) | 8.06 (0.02) | |||||||
| Mass | [M☉] | 0.608 (0.01) | 0.613 (0.01) | 0.603 | 0.83 (0.1) | 0.89 (0.06) | 0.638 (0.01) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.5578 | |||||||||||||
| 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] | 13.09 (0.07) | 13.15 (0.09) | 12.96 (0.4) | 13.09 | 13.09 (0.07) | 13.15 (0.09) | ||||||||
| Distance | [pc] | 76.38 (0.4) | 76.02 (0.5) | 77.20 (4) | 77.16 (2) | 48.00 | 76.38 | 76.38 (0.4) | 76.02 (0.5) | ||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -99.90670441 (0.09) | -100.1265506 (0.2) | -99.907 (0.09) | -100.1265506 | ||||||||||
| Proper motion (declination) | [mas/yr] | 80.02327217 (0.1) | 79.8773879 (0.1) | 80.023 (0.1) | 79.8773879 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | yes | ||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | 16.20 (0.1) | 16.20 | |||||||||||||
| R magnitude | 16.46 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.55 (0.01) | ||||||||||||||
| H magnitude | 16.50 (0.02) | ||||||||||||||
| K magnitude | 16.54 (0.03) | ||||||||||||||
| u magnitude | 16.90 (0.008) | 16.90 (0.008) | |||||||||||||
| g magnitude | 16.46 (0.004) | 16.46 (0.004) | |||||||||||||
| r magnitude | 16.60 (0.005) | 16.60 (0.005) | |||||||||||||
| i magnitude | 16.72 (0.005) | 16.72 (0.005) | |||||||||||||
| z magnitude | 17.00 (0.01) | 17.00 (0.01) | |||||||||||||
| G magnitude | 16.48 (0.004) | 16.50 | 16.49 (0.002) | 16.48 | 16.48 (0.003) | 16.50 | |||||||||
| BP magnitude | 16.52 (0.004) | 16.50 | 16.50 | ||||||||||||
| RP magnitude | 16.45 (0.009) | 16.44 | 16.44 | ||||||||||||
| Pan g magnitude | 16.46 (0.005) | ||||||||||||||
| Pan r magnitude | 16.56 (0.004) | ||||||||||||||
| Pan i magnitude | 16.74 (0.003) | ||||||||||||||
| Pan z magnitude | 16.91 (0.005) | ||||||||||||||
| Pan y magnitude | 17.01 (0.01) | ||||||||||||||
| E(B-V) | 0.003 | ||||||||||||||
* Constant surface field
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