Use BS/HR 6070 or 19 Omicron for the Leap+3 years in the 2000 era. In some cases you have a choice. Remember that a brighter star has a smaller magnitude number, if that is your choice.

Name: HR 6070 d SCO aka HD 146624 formerly BS 6070
Birthday from Jack’s initial research: Nov 28
Magnitude: 4.8
Spectrum/Star type: White
Distance in Light Years: 140
Diameter compared to Sun: ~2.5x
Luminosity compared to Sun: ~50x
Date best observed: Jul 10

Name: 19 Omicron SCO
Birthday from Jack’s initial research: Nov 28
Magnitude: 4.5
Spectrum/Star type: White Giant
Distance in Light Years: 1175
Diameter compared to Sun: ~6x
Luminosity compared to Sun: ~50x
Date best observed: July 11
Additional information: This star is far away for a visible star.

Name: 20Sigma SCO
Birthday from Jack’s initial research: Nov 28
Magnitude: 2.9, variable
Spectrum/Star type: Blue, but dust makes it less so from our view.
Distance in Light Years: 735
Diameter compared to Sun: 2 Hot Stars, one losing mass to the other.
Luminosity compared to Sun: 65,000 & 27,000
Date best observed: July 11
Additional information: 20 Sigma is a spectroscopic binary. Interstellar dust dims the brightness by 1+ magnitude! One star is a young, massive, rare O Star, the other is blue; both are egg-shaped! There are 2 other companions as well. Together with Tau Sco they are known as Al Niyat, “Outworks of the Heart”, protecting the Heart of the Scorpion, Antares.