I made some preparation for 2026. Below list are my Astronomical Challenges 2026 (source Hemel Calender 2026, SkySafari, Stellarium and ChatGPT)
By celestial body/event (by date see below)
Planetoides
January 5 Eros (433) M33
January 20 Nysa (44) M44 and 3I/Atlas
February 22 Psych (16) NGC1647
February 26-28 Papagena 471 Urania
April 26 Nysa (44) M44
July 28 Ceres (1) M1
July 28 10P/ Tempel M30
Comets
February 23 24P/Schamuasse M5
March 6-8 46P/Wirtanen Hyaden Melotte25
March 8-14 10P/Tempel 40P/Vaisala
March 14-20 46P/Wirtanen Pleiades
April 1 24P/Schamuasse M5
Jun 25: 10P/Tempel M72
June 15-25 C/2025 F2 M53
July 1 10P/Tempel NGC7009
October 23-24 10P/Tempel NGC 7507 7513
Planets
January 10 Opposition Jupiter
June 3 Sodium tail Mercury
June 8, 12, 13 16 Venus, Jupiter, Saturn, Vesta, Pallas, Mercury, Moon
July 11 Moon Pleiades Mars Urania
October 4 Opposition Saturn
October 11 Mars M44
November 26 Sodium tail Mercury
Swingby Juice
28 september
3 december
Occultations
February 17: Felicia 294 UT20h36
Moon
January 27 Pleiades
February 25 Hesiodus Ray
August 28 Eclips
October 19 Hesiodus Ray
October 28 Pleiades
December 21 Pleiades
Variable stars
Februray 27 Algol
October 23 Algol
November 15 Algol
Eclips
August 12 Solar Eclipse
Variables to measure during one night and max +/- 1 or 5 days from new moon, according to ChatGPT
By date
January 5 Eros (433) M33
January 10 Opposition Jupiter
January 20 Nysa (44) M44 and 3I/Atlas
January 27 Moon Pleiades
February 17: Felicia 294 UT20h36
February 22 Psych (16) NGC1647
February 23 24P/Schamuasse M5
February 25 Moon Hesiodus Ray
February 26-28 Papagena 471 Urania
Februray 27 Algol
March 6-8 46P/Wirtanen Hyaden Melotte25
March 8-14 10P/Tempel 40P/Vaisala
March 14-20 46P/Wirtanen Pleiades
April 1 24P/Schamuasse M5
April 26 Nysa (44) M44
June 3 Sodium tail Mercury
June 8, 12, 13 16 Venus, Jupiter, Saturn, Vesta, Pallas, Mercury, Moon
June 15-25 C/2025 F2 M53
Jun 25: 10P/Tempel M72
July 1 10P/Tempel NGC7009
July 11 Moon Pleiades Mars Urania
July 28 Ceres (1) M1
July 28 10P/ Tempel M30
August 12 Solar Eclipse
August 28 Moon Eclips
September 28 Swingby Juice
October 4 Opposition Saturn
October 11 Mars M44
October 19 Moon Hesiodus Ray
October 23 Algol
October 23-24 10P/Tempel NGC 7507 7513
October 28 Moon Pleiades
November 15 Algol
November 26 Sodium tail Mercury
December 3 Swingby Juice
December 21 Moon Pleiades
