|1950||16 LIB||16 LIB|
|2000||16 LIB||9Alpha2 LIB|
Use 16 LIB for any year on this day in the 1950 era. Use either star in the 2000 era. Remember that a brighter star has a lower magnitude number, if that is your choice.
Name: 9Alpha2 LIB Zubenelgenubi
Birthday from Jack’s initial research: Nov 7
Spectrum/Star type: White, with strong metallic spectral lines
Distance in Light Years: 77
Diameter compared to Sun: ~5x
Luminosity compared to Sun: <40x
Date best observed: Jun 19
Additional information: The “Southern Claw”, once part of the Scorpion, now Libra’s southern scale. It’s companion 8 Alpha1 can be easily seen in binoculars, ~1.5x wider and ~5x more luminous than the sun. They are a true binary system. Each one is a spectroscopic binary as well. It is a 4-star system! This star is probably part of the Castor moving group. It is located just N of Ecliptic and is also a Navigational Star.
Name: 16 LIB
Birthday from Jack’s initial research: Nov 8
Spectrum/Star type: Light yellow
Distance in Light Years: 91
Diameter compared to Sun: ~2x
Luminosity compared to Sun: ~7x
Date best observed: Jun 20
Additional information: This star is located outside of the zodiac.