2017 Lunar Occultations/Conjunctions of Bright Stars

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Christopher K.
Posts: 4376
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

2017 Lunar Occultations/Conjunctions of Bright Stars

Post by Christopher K. » January 23rd, 2017, 5:02 pm

I hope to relay here all the occultations of stars magnitude 5.0 or brighter, which can be seen from Baton Rouge and during which the Moon is at least fifteen degrees in altitude. I will be checking the list provided by the International Occultation Timing Association. I also will mention most notable lunar-star conjunctions.

Christopher K.
Posts: 4376
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2017 Lunar Occultations/Conjunctions of Bright Stars

Post by Christopher K. » February 5th, 2017, 7:10 pm

5 February 2017, 7:07pm to 8:37pm
Moon-Aldebaran Conjunction


The two will cross from southeast to southwest together during this time span. The 9.4 day-old Moon will be directly to the left of Aldebaran in its home constellation of Taurus, the pair remaining fewer than three degrees apart the whole time. At 7:07pm the Moon will be seventy-four degrees up, and seventy-two degrees up at 8:37pm.

This is NOAA's current forecast for 8pm tonight...
precipitation potential, 8%
sky cover, 52%
relative humidity, 81%
temperature, 19˚C
surface wind, S 8 km/h

Danko's Clear Dark Sky states that at 8pm the transparency rating below average" (2 out of 5) and the seeing rating will be "average" (3 out of 5).

2017 is a big year for Moon-Aldebaran interaction. Stay tuned!

Christopher K.
Posts: 4376
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2017 Lunar Occultations/Conjunctions of Bright Stars

Post by Christopher K. » March 2nd, 2017, 8:04 pm

4 March 2017, 9:52pm to 10:55pm
Moon-Aldebaran Conjunction


The two will set in the west together during this time span. The 7.1 day-old Moon will be occult Aldebaran on its night side; Aldebaran will emerge at roughly the latiitude of Mare Crisium. At 9:52pm the Moon will be thirty-three degrees up, and twenty degrees up at 10:55pm.

This is NOAA's current forecast for 10pm Saturday...
precipitation potential, 13%
sky cover, 76%
relative humidity, 80%
temperature, 12˚C
surface wind, E 10 km/h

Danko's transparency and seeing predictions have yet to be posted.

More information:
http://www.lunar-occultations.com/iota/ ... 5zc692.htm
http://www.skyandtelescope.com/observin ... ch-4-2017/

Christopher K.
Posts: 4376
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2017 Lunar Occultations/Conjunctions of Bright Stars

Post by Christopher K. » March 31st, 2017, 7:20 pm

31 March 2017, 9:10pm to 10:10pm CDT
Moon-Aldebaran


The two will be setting together in the west, in Aldebaran's home constellation of Taurus. The 4.5 day-old Moon will have Aldebaran to its upper left, the pair remaining fewer than five degrees apart the whole time. At 9:10pm the Moon will be twenty-eight degrees up, and fifteen degrees up at 10:10pm.

Christopher K.
Posts: 4376
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2017 Lunar Occultations/Conjunctions of Bright Stars

Post by Christopher K. » May 4th, 2017, 5:00 pm

4 May 2017, 8:42pm to 9:12pm CDT
Moon-Regulus


The two will be rising together high in the south in darkening twilight, in Regulus's home constellation of Leo. The 9.4 day-old Moon will have Aldebaran to its upper right, the pair remaining fewer than nine degrees apart the whole time. Interestingly, the Moon will be sixty-eight degrees up at both 8:42pm and 9:12pm.

Christopher K.
Posts: 4376
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2017 Lunar Occultations/Conjunctions of Bright Stars

Post by Christopher K. » May 5th, 2017, 3:43 pm

I hope to relay here all the occultations of stars magnitude 5.0 or brighter, which can be seen from Baton Rouge and during which the Moon is at least fifteen degrees in altitude. I will be checking the list provided by the International Occultation Timing Association.

11 May 2017
Gamma Librae
[ingress ~2:15am CDT at azimuth 197˚ / altitude 43˚; near crater Olbers, or about lunar latitude 7˚N]
[egress ~3:45am CDT at azimuth 222˚ / altitude 33˚; near Mare Crisium, or about lunar latitude 16˚N]


More information:
http://www.lunar-occultations.com/iota/ ... zc2223.htm

Christopher K.
Posts: 4376
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2017 Lunar Occultations/Conjunctions of Bright Stars

Post by Christopher K. » June 30th, 2017, 7:07 pm

30 June 2017
Porrima
[ingress ~10:05pm CDT at azimuth 241˚ / altitude 37˚; near crater Schiller, or about lunar latitude 52˚S]
[egress ~10:49pm CDT at azimuth 249˚ / altitude 29˚; near crater Reimarus, or about lunar latitude 48˚S]


More information:
http://www.lunar-occultations.com/iota/ ... zc1821.htm

Christopher K.
Posts: 4376
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2017 Lunar Occultations/Conjunctions of Bright Stars

Post by Christopher K. » October 14th, 2017, 6:14 pm

14 October 2017
Regulus
[egress ~4:20am CDT at azimuth 85˚ / altitude 15˚; near Crater Cavalerius, or about lunar latitude 5˚N]


Although it will be still completely dark, the Moon's low altitude might cause trouble for some potential viewers. The possible cloud cover and humidity may also pose problems. This is NOAA's current forecast for 4am tomorrow...
precipitation potential, 7%
sky cover, 60%
relative humidity, 97%
temperature, 23˚C
surface wind, E 2 km/h

Danko states that the transparency will be "average" (3 out of 5) and the seeing will be "excellent" (5 out of 5).

More information:
http://www.lunar-occultations.com/iota/ ... zc1487.htm

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