Neptune Viewing, 2019

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Christopher K.
Posts: 4720
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Neptune Viewing, 2019

Post by Christopher K. » February 21st, 2019, 4:25 pm

Neptune's opposition in 2019 occurs during the 1am hour on 10 September. Accordingly, the Neptunian Opposition viewing at HRPO will be on Monday 9 September from 8:45pm to 10:45pm. Neptune will be in the constellation Aquarius and will begin the session eighteen degrees above the horizon.

The event will have no admission fee and will be for all ages.

Information for other 2019 planet viewing:
http://hrpo.lsu.edu/programs/planet_times.html

Christopher K.
Posts: 4720
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Neptune Viewing, 2019

Post by Christopher K. » August 9th, 2019, 2:56 pm

Neptune will be viewed Monday night at HRPO (though only from 11:30pm to midnight) during the peak of the Perseid Meteor Shower. It will be in the constellation Aquarius (as it has been at least since 2011) less than three-quarters of a degree ENE of magnitude 4.2 K-class Phi Aquarii. Telescopes will be retired at midnight so visitors can concentrate on searching for Perseids, the rate of which will increase after midnight.

Christopher K.
Posts: 4720
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Neptune Viewing, 2019

Post by Christopher K. » August 15th, 2019, 3:44 pm

Due to HRPO personnel using work hours for the Neptunian Opposition on Monday 9 September, there will be no public programming on Friday 6 September.

During this Opposition night the waxing gibbous Moon, Jupiter and Saturn will be available also. Near the end of the viewing session the moon Europa will emerge from behind Jupiter! Jupiter will be quite low in the southwest; scope operators will attempt to find a location on the viewing grounds to allow patrons to see this event.

Christopher K.
Posts: 4720
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Neptune Viewing, 2019

Post by Christopher K. » September 6th, 2019, 6:43 pm

This will be a special night for Neptune enthusiasts, as it couldn't be easier to find the planet. The entire night it will be fewer than two arcseconds from Phi Aquarii--probably the closest "pass" to this star.

Christopher K.
Posts: 4720
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Neptune Viewing, 2019

Post by Christopher K. » September 9th, 2019, 6:05 pm

Below is the NOAA forecast for tonight's Neptune viewing time of 8:45pm to 10:45pm...
precipitation potential, 13%
sky cover, 46%
relative humidity, 80%
temperature, 28˚C
temperature, 32˚C
surface wind, SE 3 km/h


Danko's Clear Dark Sky states that during HRPO's viewing time the transparency rating will be "below average" (2 out of 5) and the seeing rating will be "good" (4 out of 5).

The 9 September 2019 rating is...
EXCELLENT
VERY GOOD
GOOD
FAIR
POOR
BAD

Personnel will show some Voyager videos indoors.

Christopher K.
Posts: 4720
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Neptune Viewing, 2019

Post by Christopher K. » September 9th, 2019, 9:00 pm

HRPO personnel assessed the situation and noted over twenty cloud-to-cloud lightning flashes in just a few minutes. Therefore, HRPO will close at 9:15pm. The Opposition night of a gas giant marks the beginning of good viewing between sunset and midnight; there will be other opportunities to see the planet this month.

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