Published 1983
| Version v1
Journal article
The motions of the umbras in Hale active regions 16862 and 16863
Creators
- 1. Slovenska Akademia Vied, Skalnate Pleso (Czechoslovakia). Astronomicky Ustav
Description
Substantial changes in the orientation of the geometrical axis of the umbra of the Hale AR 16863 was observed from 22 to 24 May 1980. Average angular velocity was -1.8 degree per hour. The axes of the both main umbras of the AR 16862 also rotated after 24 May 1980. These spots were the preferred locations of umbral subflares. (author)
Additional details
Publishing Information
- Journal Title
- Bull. Astron. Inst. Czech.
- Journal Volume
- 34
- Journal Issue
- 2
- Series
- Bull. Astron. Inst. Czech.
- Journal Page Range
- 96-99
- ISSN
- 0004-6248
INIS
- Country of Publication
- Czech Republic
- Country of Input or Organization
- Serbia and Montenegro
- INIS RN
- 15054586
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ANGULAR VELOCITY; PHOTOSPHERE; ROTATION; SUN; SUNSPOTS
- Descriptors DEC
- ATMOSPHERES; MAIN SEQUENCE STARS; SOLAR ACTIVITY; SOLAR ATMOSPHERE; STARS; STARSPOTS; STELLAR ATMOSPHERES; VELOCITY