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Serpens / Milky Way Globular Clusters

«A Catalog of Parameters for Globular Clusters in the Milky Way» William E. Harris, 1996 [148]
ID Name RA Dec RSun RGC Fe/H wt EB-V VHB (m-M)V Vt MV,t U-B B-V V-R V-I spt ellip vr vLSR sigv c rc rh μV ρ0 lg(tc) lg(th)
Pal 5 15 16 05.25 -00 06 41.8 23.2 18.6 -1.41 2 0.03 17.51 16.92 11.75 -5.17 -58.7 ± 0.2 -48.0 1.1 ± 0.2 0.52 2.29 2.73 24.64 -0.58 9.81 9.82
NGC 5904 M 5 15 18 33.22 +02 04 51.7 7.5 6.2 -1.29 11 0.03 15.07 14.46 5.65 -8.81 0.17 0.72 0.45 0.95 F7 0.14 53.2 ± 0.4 64.3 5.5 ± 0.4 1.73 0.44 1.77 16.09 3.88 8.28 9.41
NGC 6539 18 04 49.68 -07 35 09.1 7.8 3.0 -0.63 5 1.02 18.33 17.62 9.33 -8.29 1.01 1.83 2.23 G4 0.08 31.0 ± 1.7 44.4 1.74 0.38 1.70 18.58 4.15 8.31 9.32
IC 1276 Pal 7 18 10 44.20 -07 12 27.4 5.4 3.7 -0.75 1 1.08 17.70 17.01 10.34 -6.67 1.03 1.76 155.7 ± 1.3 169.2 1.33 1.01 2.38 21.60 2.78 8.46 9.03

Legend

Key to columns [148]
ID Cluster identification number
Name Other commonly used cluster name
RA Right ascension (epoch J2000)
Dec Declination (epoch J2000)
RSun Distance from Sun (kiloparsecs)
RGC Distance from Galactic center (kpc), assuming R_0=8.0 kpc
Fe/H Metallicity [Fe/H]
wt Weight of mean metallicity; essentially the number of independent [Fe/H] measurements averaged together.
EB-V Foreground reddening
VHB V magnitude level of the horizontal branch (or RR Lyraes)
(m-M)V Apparent visual distance modulus
Vt Integrated V magnitude of the cluster
MV,t Absolute visual magnitude (cluster luminosity), M_V,t = V_t - (m-M)V
U-B Integrated color indices (uncorrected for reddening)
B-V Integrated color indices (uncorrected for reddening)
V-R Integrated color indices (uncorrected for reddening)
V-I Integrated color indices (uncorrected for reddening)
spt Spectral type of the integrated cluster light
ellip Projected ellipticity of isophotes, e = 1-(b/a)
vr Heliocentric radial velocity (km/s)
vLSR Radial velocity relative to Solar neighborhood LSR
sigv Central velocity dispersion sig_v (km/s)
c King-model central concentration, c = log(r_t/r_c); a 'c' denotes a core-collapsed cluster
rc Core radius in arcmin
rh Half-light radius in arcmin
μV Central surface brightness, V magnitudes per square arcsecond
ρ0 Central luminosity density, log_10(Solar luminosities per cubic parsec)
lg(tc) Core relaxation time t(r_c), in log_10(years)
lg(th) Median relaxation time t(r_h), in log_10(years)

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