The Neckel & Chini UBVRI system
Basic Reference
Neckel Th., Chini R. 1980, A&A.Suppl. 39, 411
Abstract
A list of 60 faint UBVRI standards is presented. Their UBV magnitudes are in
the system introduced by Johnson (1955) and their V-I colors are in the system
of the Arizona Tonantzintla catalogue by Iriarte et al. (1965). These stars are
spread over an equatorial belt with |delta| < 30 deg., so that they can be
observed as well from northern as from southern sites.
Content
Access to the data and references
Asiago Database on Photometric System (ADPS)
Indices and Parameters
V, U-B, B-V, V-R, R-I, V-I
Filters
- UBV
- U : 1.5 mm Schott UG2
- B : 1 mm Schott BG3 + 2 mm GG385
- V : 3 mm Schott GG495
- VRI
- V : 3 mm Schott GG495 + 1 mm BG18
- R : 3 mm Schott OG590 + 2 mm Calflex C
- I : 3 mm Schott RG780
Photomultiplier
- UBV : EMI 6256
- VRI : RCA 31034
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epaunzen@physics.muni.cz
Last update: 13 September 2002