M 27

All names: IRAS 19574+2234, RX J1959.6+2243, PK 060-03, WD 1957+225, 2E 4308, PN ARO 14, PLX 4735, GCRV 12336, BD+22 3878, RE J195935+224359, M 27, NGC 6853, EUVE J1959+22.7, PN VV' 521, 2EUVE J1959+22.7, NAME Diabolo Nebula, Gaia DR3 1827256624493300096, PK 060-03 1, PN G060.8-03.6, Hen 2-452, CSI+22-19572, 2E 1957.4+2235, Gaia DR2 1827256624493300096, PN VV 246, Gaia EDR3 1827256624493300096, 1RXS J195936.2+224309, RE J1959+224, NAME Dumbbell Nebula, 2MASX J19593637+2243157, PLX 4735.00

Parameter Unit Gaia EDR3 Gaia DR2 Stilism Gianninas et al. 2011 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 19 59 36.38 (0.02) 19 59 36.37 (0.03) 19 59 36.38 19 59 36.36 (0.02) 19 59 39.55
Declination 22 43 16.37 (0.03) 22 43 16.37 (0.03) 22 43 16.37 22 43 16.31 (0.03) 22 43 15.60
Spectral type DA DA: DAO.6 DAO
Effective temperature [K] 86680.0 (5379) 233134.0 (25189)
log(g) [cgs] 7.36 (0.2) 7.82 (0.04)
Mass [M] 0.57 (0.05) 2.079 (0.1)
log(Luminosity) [L]
Cooling age [Gyr]
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] 2.57 (0.04) 2.66 (0.04) 2.57 2.57 (0.04) 2.60 (0.4)
Distance [pc] 389.10 (6) 376.30 (6) 259.00 389.10 389.11 (6) 384.62 (59)
Composition H
Proper motion (right ascension) [mas/yr] 10.51975707 (0.03) 10.49570977 (0.06) 10.52 (0.03)
Proper motion (declination) [mas/yr] 3.699174068 (0.04) 3.682250944 (0.06) 3.699 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 13.75 (0.03)
V magnitude 14.09 (0.01)
R magnitude 14.25 (0.006)
I magnitude 14.40 (0.01)
J magnitude 11.79 (0.07)
H magnitude
K magnitude 10.61 (0.07)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.04 (0.001) 14.03 14.04 14.04 (0.003)
BP magnitude 13.84 (0.001) 13.71
RP magnitude 14.38 (0.002) 14.30
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.045

* Constant surface field

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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.