University of Calgary
UofC Navigation

Skywatch & Multimedia

Submitted by burnsc on Mon, 02/08/2016 - 3:13pm

RAO Weather Cam

RAO Weather Cam

Click this image for a larger photo from the RAO weather cam.  NOTE: The date and time stamp on the weather cam image is in UTC.

Click here Weather Time Lapse to create and view time lapse videoof the weather today at the RAO.

RAO - CSC

Clear Sky Chart

Click this image to see the RAO's Clear Sky Chart...

...and access some great astronomical links: Rothney Astrophysical Observatory - CSC 

Current Sky over the RAO

The sky holds many surprises when you can see the whole picture at once!  Because the camera is extremely light sensitive, the Sun creates a white vertical line.  On very bright sunny days, the whole image may be over exposed.  Images taken from sunset to sunrise are best.  Planets, constellations, and the Milky Way can be seen on clear nights!

What does this image show?  Well, it's essentially the whole sky!  North is at the right and South is at the left.  West is at the bottom and East is at the top.  The point on the sky straight over the RAO is at the center.

The dome to the left houses the 0.5 wide field Baker-Ninn Cross Telescope. Downtown Calgary is on the horizon behind the satellite dish to the NE.  The dome at the top houses the big 1.8 m A.R. Cross Telescope.  The darkest and most pristine skies viewable from the RAO are away from the city, toward the south and SW.   Click the image for a large view.

Although sky glow from Calgary can be seen at night, the RAO is still under very dark skies when the Moon is below the horizon.  The University of Calgary thanks residents of the MD Foothills for their efforts to keep their lights pointed downward.  The University is also working with the City and the Province of Alberta to minimize sky glow from the Providence and the Southwest Ring Road developments.

Real-time measurements between sundown and sunrise

Sky Quality Meter at the RAO

After the Sun goes down, the SQM begins to measure the darkness of the sky. The units are a bit wonky to those not familiar with the magnitude scale, but the measurements are very informative and the sensitivity of the device is amazing. Click the graph for a larger view.

When the sky is very dark, and of course, these are the times when the RAO telecopes can see the most interesting things, the SQM will read values between 20.5 and 21.0. The Moon has a big influence on sky brightness, so the altitude of the Moon is included in this plot as the yellow circles (if above the horizon).

Solar Gnomon

  • Click here for links to information on the solar gnomon: Solar Gnomon NOTE: The RAO solar gnomon is being redesigned.

Weather Links:

Other Webcams:

Sky Watch (astronomical events):

Observatories and Science Centres:

M T W T F S S
 
 
 
 
 
1
 
2
 
3
 
4
 
5
 
6
 
7
 
8
 
9
 
10
 
11
 
12
 
13
 
14
 
15
 
16
 
17
 
18
 
19
 
20
 
21
 
22
 
23
 
24
 
25
 
26
 
27
 
28
 
29
 
30