DAS Activities

DAS Public Nights

Public Nights
Tuesday and Thursday at
DU's Historic Chamberlin Observatory
Current start time is 7:30 pm.
It will change to 8:30 pm on March 12th.
Costs to the public are:
$4.00 adults, $3.00 children

To book, please click:

Public Night Reservations

Astro Calendar

“What’s Out Tonight – January 2019”
Star Chart and Data
(courtesy of Ken Graun © 2018)

Astronomical Things to See and Do – January 2019

(NOTE: to find the MST for UT, subtract 7 hours from the UT listing)


46P/Wirtanen (2018) Ephemeris   (from In-the-sky.org)

Images and Sky Map on Weekly Comet News

Weekly Comet News: http://www.aerith.net/comet/weekly/current.html

NASA Web page on comets: http://nssdc.gsfc.nasa.gov/planetary/planets/cometpage.html

Planetary Phenomena

Planets in January 2019LocationAvg MagnitudeAvg SizeNotes
MercuryMorning sky-0.74.9"
VenusBright morning twilight at 3:30 am-4.522.6"Slender crescent; near Jupiter all month: 2.5 deg on Jan 22nd
MarsIn Pisces, early evening+0.076.7"
JupiterIn morning twilight; late in Dec; SE sky-1.8532.7"
Near Venus; 2.5 deg on Jan 22nd
SaturnIn Sun glare; unobservable+0.5 15.1"Conjunction with Sun on Jan 2nd
Uranus01h 46.2m; extreme eastern Pisces5.83.6"
Neptune23h 03.2m; in Aquarius7.92.2"

Moon Phases & Info: https://moon.nasa.gov/

Moon PhenomenaDateTime (UT)Comment
New MoonJanuary 6th 01:28Lunation 1188
1st QuarterJanuary 14th 06:46
Full MoonJanuary 21st 05:16Quite Moon
Third QuarterJanuary 27th 21:10

Meteor Showers This Month

Shower NameUT /peak hrDuration (Days)Hourly Rate (ZHR)% Above HorizonMoon Phase
Particle Size - r
(smaller# = larger size)
RADecv - speed (km/sec)Parent
QuadrantidsJan 4th 2h UT1120100New2.115.18+49.543 (moderate)2003EH Asteroid

American Meteor Society: http://www.amsmeteors.org/meteor-showers/meteor-shower-calendar/


Notable Objects for Deep Sky Observers

Catalog #DescriptionRight
M74Face-on Galaxy01 42.4+15 47Pisces
M76Little Dumbbell Planetary Nebula01 42.4+51.34Perseus
M33Pinwheel or
Triangulum Galaxy
01 33.9+30 39Triangulum
NGC 253Silver Dollar Galaxy00 47.6-25 17Sculptor
NGC 457Owl or ET open star cluster01 19.1+58 20Cassiopeia
(Note: Supernova visible)
Seyfert Galaxy02 42.7-00 01Cetus
M30Globular Cluster21 40.4-23 11Capricorn
NGC 7331Deer Lick Galaxy22 31.7+34 25Pegasus
M31, M32, M110Andromeda Galaxy & companions0 42.7+41 16Andromeda
M15Globular Cluster21 30.0+12 10Pegasus
NGC 6960, 6992/5, 7000Veil Nebula20 45.7 thru
+30.43 thru
NGC6888+Crescent Nebula
(Use nebular filter)
20 12.0+38 21Cygnus
NOTES+ Challenge Object*If multiple, brightest component.

Observing Opportunities

Open House – Saturday, December 15th 5:30 pm – 11 pm at DU’s Historic Chamberlin Observatory (Open to Public)

EGK Dark Site – Any night or Dark Sky Weekend, December 7th – 9th (Members & Guests)