- Version
- Download 50
- File Size 2.35 MB
- File Count 1
- Create Date 31 March 2023
- Last Updated 31 March 2023
BASIL April 2023
The front cover of BASIL shows NASA images of the Sombrero Galaxy (M104) taken at x-ray, optical and infra-red wavelengths, and a combined image. M104 is well-placed for observing during the month.
Predicted solar activity, solar images from the GOES SUVI telescope, solar cycle progression, lunar phases and events, solar system finder charts and rise / set times are reported for April.
Also included are the monthly observing calendar, highlights of the April night sky, observable comets and asteroids, and the calendar of astronomical events for April.
There is an asteroid occultation on 10 April - see page 19. Asteroid (314) Rosalia will occult a 12.4 magnitude star in the constellation of Virgo. There is also a link provided to a BAA webinar giving an introduction on how to observe asteroid occultations. Thanks to BAS member Nigel Wakefield who provided this information and data links.
Constellation of the month is Virgo, which is well-placed for observing the Virgo Galaxy Cluster.
Visible transits of the ISS for April are listed - only 8 passes this month.
A list of 35 observing targets for the month are provided, together with 14 observing targets in Virgo.
More details are provided for observing:
- The Virgo Galaxy Cluster.
- The Sombrero Galaxy (M104).
Society News gives details of the 2023 programme of talks and events, up to the end of the year.