Table 1.

Some basic data for NGC 6537, PK 10 0°1

Basic data
α = 18h05m13⋅s4, δ = −19°50′14"(2,000)
Diameter = 10–34" Nɛ: ≈20,000 ml (see text)
log F (Hβ) = −11.40 ± 0.03 (erg⋅cm−2⋅s−1)
Radial Velocity = −16.0 ± 3.0, −10.1 ± 1.0 (see text), km⋅s−1
Expansion velocity = 18.0 km⋅s−1 ([O III])
Central star: mB > 19.8, mV > 18.8
T(★) = 200,000 K [SCS93]
Distance estimates (kiloparsecs): 0.90 [CKS91], 1.323[SCS93]

CKS91: Cahn, Kaler, and Stanghellini (10). SCS93: Stanghellini, Corradi, and Schwarz (11). Unless otherwise indicated, data are from Acker et al. (9)