GD 347
All names: SDSS J153615.84+501350.7, WDJ153615.83+501350.98, 2MASS J15361583+5013511, NLTT 40706, GD 347, PG 1534+503, SDSS J153615.85+501350.5, LP 176-65, WD 1534+503, Gaia DR2 1402721307964211072, WIRED J153615.85+501350.6, USNO-B1.0 1402-00278339, SDSS J153615.84+501350.6, PG 1534+504, SDSS J153615.85+501350.6, SBSS 1534+503, TIC 235567807, EGGR 365, SDSS J153615.83+501350.7, Gaia DR3 1402721307964211072, WD 1534+50, LSPM J1536+5013, UBV M 43071, GALEX J153615.8+501349, Gaia EDR3 1402721307964211072, GEN# +6.10060347, J1536+5013
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Tremblay et al. 2011 | Zuckerman et al. 2003 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 36 15.97 (0.02) | 15 36 15.85 | 15 36 15.96 (0.03) | 15 36 15.97 | 15 36 15.83 (0.02) | 15 36 15.96 | 15 36 15.84 | 15 36 15.74 | 15 36 15.85 | |||||||||||
| Declination | 50 13 48.07 (0.03) | 50 13 50.58 | 50 13 48.16 (0.03) | 50 13 48.07 | 50 13 50.98 (0.03) | 50 13 48.16 | 50 13 50.66 | 50 13 57.36 | 50 13 50.63 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA5.6 | DA | DA_auto | DA6 | DA | DA | |||||||
| Effective temperature | [K] | 8736.0 (34) | 8774.0 (30) | 8736.0 (34) | 8588.0 | 9010.0 (129) | 8820.0 (20) | 6500.0 | 8877.0 (43) | 8906.0 (16) | 8736.0 (18) | |||||||||
| log(g) | [cgs] | 7.24 (0.006) | 7.24 (0.006) | 7.24 (0.006) | 7.20 | 8.14 (0.05) | 8.09 (0.03) | 8.00 | 7.29 (0.009) | 8.19 (0.03) | 8.03 (0.03) | |||||||||
| Mass | [M☉] | 0.265 (0.003) | 0.266 (0.003) | 0.265 (0.003) | 0.256 | 0.69 (0.03) | 0.65 (0.02) | 0.28 (0.004) | 0.614 (0.02) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||||||
| Cooling age | [Gyr] | 0.3600 | 0.4201 | 0.9550 | ||||||||||||||||
| log(H/He) | ||||||||||||||||||||
| log(C/He) | ||||||||||||||||||||
| log(Ca/He) | ||||||||||||||||||||
| log(Ca/H) | <-11.267 | |||||||||||||||||||
| 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] | 14.66 (0.03) | 14.59 (0.03) | 14.59 (0.03) | 14.66 | 14.66 (0.03) | 14.59 (0.03) | |||||||||||||
| Distance | [pc] | 68.21 (0.1) | 68.54 (0.1) | 68.54 (0.2) | 38.00 | 68.21 | 68.21 (0.1) | 68.54 (0.2) | ||||||||||||
| Composition | H | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 80.62778362 (0.03) | 80.4907798 (0.06) | 80.628 (0.03) | 80.491 | 80.6 | ||||||||||||||
| Proper motion (declination) | [mas/yr] | -182.1401414 (0.04) | -182.0998686 (0.07) | -182.14 (0.04) | -182.1 | -181.9 | ||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | DDU | |||||||||||||||||||
| B magnitude | 15.97 | |||||||||||||||||||
| V magnitude | ||||||||||||||||||||
| R magnitude | 15.60 | |||||||||||||||||||
| I magnitude | ||||||||||||||||||||
| J magnitude | 15.52 (0.008) | 15.45 | 15.42 (0.06) | |||||||||||||||||
| H magnitude | 15.27 (0.1) | 15.41 | 15.27 (0.1) | |||||||||||||||||
| K magnitude | 15.11 (0.2) | 15.42 | 15.11 (0.2) | |||||||||||||||||
| u magnitude | 16.28 (0.006) | 16.28 (0.005) | 16.29 (0.006) | 16.28 (0.005) | 16.28 (0.01) | 16.28 | 16.27 (0.01) | |||||||||||||
| g magnitude | 15.84 (0.004) | 15.84 (0.004) | 15.83 (0.003) | 15.86 (0.02) | 15.86 | 15.87 (0.02) | ||||||||||||||
| r magnitude | 15.84 (0.004) | 15.84 (0.004) | 15.85 (0.003) | 15.83 (0.02) | 15.83 | 15.83 (0.02) | ||||||||||||||
| i magnitude | 15.91 (0.005) | 15.91 (0.005) | 15.92 (0.004) | 15.92 (0.01) | 15.92 | 15.93 (0.01) | ||||||||||||||
| z magnitude | 16.04 (0.007) | 16.04 (0.007) | 16.07 (0.007) | 16.07 (0.02) | 16.06 | 16.08 (0.02) | ||||||||||||||
| G magnitude | 15.78 (0.002) | 15.80 | 15.78 | 15.78 (0.003) | 15.80 | |||||||||||||||
| BP magnitude | 15.88 (0.002) | 15.87 | 15.87 | |||||||||||||||||
| RP magnitude | 15.61 (0.002) | 15.61 | 15.61 | |||||||||||||||||
| Pan g magnitude | 15.85 (0.003) | 15.85 (0.004) | ||||||||||||||||||
| Pan r magnitude | 15.86 (0.003) | 15.86 (0.003) | ||||||||||||||||||
| Pan i magnitude | 15.93 (0.003) | 15.93 (0.003) | ||||||||||||||||||
| Pan z magnitude | 16.04 (0.002) | 16.04 (0.003) | ||||||||||||||||||
| Pan y magnitude | 16.14 (0.009) | 16.14 (0.007) | ||||||||||||||||||
| E(B-V) | 0.009 | |||||||||||||||||||
* Constant surface field
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