Archive for July 28, 2016

07/28/2016 – Ephemeris – Two upcoming meteor showers plus an occultation tomorrow morning

July 28, 2016 Comments off

Ephemeris for Thursday, July 28th.  The Sun rises at 6:25.  It’ll be up for 14 hours and 47 minutes, setting at 9:12.  The Moon, 2 days past last quarter, will rise at 2:31 tomorrow morning.

We have a couple of meteor showers of note coming up.  The first is the Southern Delta Aquariids which will peak on the 30th.  The radiant point for these meteors will rise around midnight in the southeast.  Their numbers and their brightness are not very great.  The Perseid meteor shower peak will have interference from the waxing gibbous moon drowning out all but the brightest meteors on the evening of August 11 and morning of he 12th.  However the Perseids have a long run up to their peak, so their numbers will grow after the moon sets.  The Perseid radiant is circumpolar for Northern Michigan, meaning it never sets, so some Perseid meteors can always be seen at night.  Their radiant will be low in the northeastern sky in the evening and much higher in the northeast just before dawn.

Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.


South Delta Aquarids

Approximate Radiant of the South Delta Aquariid meteor shower. The radiant does move over the several weeks of the shower to the east. Created using my LookingUp program.

Perseid Meteor Shower radiant after midnight

Perseid Meteor Shower radiant after midnight. Created using my LookingUp program.

Update: Occultation of Aldebaran tomorrow morning

Aldebaran Occultation

The area where the occultation of Aldebaran will be visible. The area bordered by the white lines is where the occultation will occur with the Sun below the horizon. Credit IOTA’s Occult 4 program.

There will be an occultation of Aldebaran by the Moon centered on 11:16 UT (7:16 a.m. EDT) July 29, 2016.  Our area (Michigan) cannot see the event, being too far north.  It will be visible south of a line containing the state of Maine down through Texas.  Universe Today has information on grazing occultation possibilities: