A general ASTRONOMY site to get you started exploring the night sky
Optimized for desktops and laptops.
Most pages on phones and tablets will overlap.
Mars will be as bright as Sirius this month!
And, both will be in the sky at the same time.
HAPPY NEW YEAR!
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Just click on the image to print this
4-page PDF doc.
Useful anywhere in the mid-latitudes of the northern hemisphere including the continental US, Hawaii, Europe, Japan, etc.
Optimized for 1.5 hours after sunset
but can be used for several hours after that.
Indicates visible planets and best objects for binoculars and telescopes. Packed with facts, mythology, Moon phases, meteor showers and more. For other months, see the archive below.
January 2025 Notes
★ About 90 minutes after Sunset ★
Planets
Every 26 months, like clockwork, the Earth and
Mars
are close together and this is that time!
Mars
will be closest to Earth on January 15/16 making it very bright in the sky, as bright as the brightest star, Sirius. Now, Mars will be rising in the east as the Sun is setting and will thus be lower in the eastern sky 90 minutes after sunset. Sirius will be slightly lower than Mars in the southeast. Yes,
Mars has a red color cast to it and it will not twinkle like the stars but shine steady. Higher up from Mars is Jupiter, which is brighter than Mars. Sometimes
Mars gets as bright as Jupiter but not this time around. Due west is the very bright Venus
.
Constellations
Orion is about halfway up the eastern sky with its three belt stars pointing straight down. These three stars are easy to recognize because they are the same brightness, equal distance and form a straight line (not a perfect line but close). There are no other three stars in the sky like them. And, they point downward to the bright star Sirius.
Yearly Meteor Shower
Table & Facts
Have a QUESTION
about the night sky or astronomy?
Some strange star in the sky that mystifies you? Email Ken Graun for an answer.
FREE
Children’s book on the constellations! No Gimmicks! Just pay the USPS Media shipping rate.
A video explaining the use of the Monthly Sky Chart is on YouTube.
Monthly Snapshot indicating the Constellations at the Cardinal Points
Snapshot
Header Image
The celestial image used for this site's header is part of the Veil Nebula, a supernova remnant in the constellation Cygnus (the Swan) visible throughout most of the summer and fall. This triangular wedge is a fainter part somewhat between the two major sections that make up the Veil Nebula and it is called
Pickering’s
Triangle. I took this image using a 6-inch diameter refractor telescope.