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HD 29649


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Radio observations of CH in front of globular clusters and the galactic gas-to-dust ratio
The gas-to-dust ratio beyond the immediate solar neighborhood isinvestigated using observations of the CH ground state emission line at3335 MHz toward 16 globular clusters. The results show that the N(CH) toE(B - V) ratio is significantly lower for the globular cluster lines ofsight than for dark clouds. The total hydrogen column density toward theglobular clusters is obtained, and its ratio to E(B - V) is found to bein agreement with other observations. The ratio is used to derive acolor excess E(B - V) = 1.6 m + or - 0.2 m for the Pal 10 cluster, whichdiffers significantly from the cosec-law value of 1.15 m, the onlyavailable color excess estimate for Pal 10 so far.

Photometric Observations of RZ Eridani
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Observation and Astrometry data

Constellation:エリダヌス座
Right ascension:04h39m47.21s
Declination:-10°41'42.5"
Apparent magnitude:8.515
Distance:131.752 parsecs
Proper motion RA:-20.3
Proper motion Dec:19
B-T magnitude:9.21
V-T magnitude:8.573

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 29649
TYCHO-2 2000TYC 5324-706-1
USNO-A2.0USNO-A2 0750-01060102
HIPHIP 21719

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