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Montgomery Cnty(C+SE), MD
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Astronomy


Sun

Moon
Sun Moon age: 14 days, 5 hours, 43 minutes,100%

 

Sunspot Activity
data
DIY Sunspot Viewer 		Sunset: 7:17pm
Sunrise: 7:20am
Daylight: 11:56 		moon 100% illuminated - Full Moon
Moonrise: 7:52pm (14-Mar-2025)
Moonset: 7:31am (14-Mar-2025)
Full Moon

 
Sun/Moon sky position graph



Sunspot Count for Last 30 Days
Sunspots last 30 days
Click for sunspot listing for the last 30 days
Graph courtesy: Newquay Weather 		Sunspot Counts for this Year
Sunspots this Year
Click for sunspot listing for the current year
Graph courtesy: Newquay Weather 		Yearly Sunspot Count since 1700
Sunspots since 1700
Click for yearly sunspot list since 1700
Graph courtesy: Newquay Weather 		  Space Wx
Space Weather
First Quarter Moon Full Moon Last Quarter Moon New Moon
First Quarter Moon Full Moon Last Quarter Moon New Moon
Thu, 06-Mar-2025 11:31am EST
06 March 2025 16:31 GMT		 Fri, 14-Mar-2025 2:55am EDT
14 March 2025 06:55 GMT		 Sat, 22-Mar-2025 7:29am EDT
22 March 2025 11:29 GMT		 Sat, 29-Mar-2025 6:58am EDT
29 March 2025 10:58 GMT


Vernal Equinox
Start of Spring		 Summer Solstice
Start of Summer		 Autumn Equinox
Start of Fall		 Winter Solstice
Start of Winter
Start of Spring First day of Summer First day of Fall First day of Winter
Thu, 20-Mar-2025 5:01am EDT
20 March 2025 09:01 GMT		 Fri, 20-Jun-2025 10:42pm EDT
21 June 2025 02:42 GMT		 Mon, 22-Sep-2025 2:19pm EDT
22 September 2025 18:19 GMT		 Sun, 21-Dec-2025 10:03am EST
21 December 2025 15:03 GMT

 


Astronomy Fact
A teaspoon-full of Neutron star would weigh about 112 million tonnes.

Phenomenal FREE Planetarium software with Satellite Tracking Stellarium

Sky Forecast
Forecasts courtesy of: ClearSky and 7timer
Color Key            
Worse                          Better                          Best Sky (including Wind)
Worse                          Best                          Worse Ground


Space Track-Satellite Passes

International Space Station View Look AnglesESV Ground Trace
Satellite Ground Trace courtesy: Heavens-Above.com
Bright Satellite List for your location.

Notes about viewing ESVs:
When using lookangles, choose passes with high magnitudes; less than 6.0. ("Looks" are local time.)
Best viewing is when ESV is in Earth's penumbra; on the map, it's the solid line during night.
Dotted line on map denotes ESV is dark, in Earth's umbra (shadow).
Objects in orbit have to maintain a speed of at least 17,500mph, therefore ESVs traverse the sky noticeably different than aircraft.
ESVs appearing to blink are either tumbling rocket bodies, or spinning payloads with deployed solar arrays.
High-Eccentricity objects have a more ellongated orbit. Ground trace looks like a backwards C.
Regression-Ground traces will move West with each orbit due to Earth's rotation.