Comparing the Sun with Other Stars along the Temperature Coordinate
Abstract
The temperature of the sun relative to other stars is determined using high-precision measurements of the ratios of depth of spectral lines. In effect, the sun is placed within the stellar grid of relative temperatures with an estimated uncertainty of +- 10 K. Among others, 16 Cyg A is found to be 5 +- 12 K hotter than the sun, while 16 Cyg B is found to be 45 +- 12 K cooler than the sun. In a similar manner, color indices are inferred with the results that R-I = 0.338 +- 0.002 on the Cousins system and B-V = 0.648 +- 0.006. This latter value supersedes the value of 0.656 published in 1992. (SECTION: Stars)
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- February 1995
- DOI:
- 10.1086/133525
- Bibcode:
- 1995PASP..107..120G
- Keywords:
-
- Line Spectra;
- Solar Temperature;
- Stellar Color;
- Stellar Temperature;
- Temperature Measurement;
- Metallicity;
- Stellar Physics;
- Astrophysics;
- SUN: CHROMOSHERE;
- SUN: FUNDAMENTAL PARAMETERS;
- STARS: FUNDAMENTAL PARAMETERS