Inner Meets Outers – In A Triple Conjunction

   Sunday morning February 28th the innermost planet, Mercury, and two of the ringed outer planets, Jupiter and Saturn, will be in a triple conjunction as Mercury moves eastward past Saturn and then Jupiter. Mercury will be about 3-4o from Saturn and about 2-3o from Jupiter.
   All three will almost fit within the field of view of binoculars and should make for an interesting contrast in apparent magnitudes however Jupiter (-1.97) far outshines Mercury (0.30) and Saturn (0.71).

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

Moon on the Move – Always


   Over the next few evenings the waxing gibbous Moon will move eastward passing by the open star cluster known as the Beehive Cluster this evening and then in a couple of days, as a full Moon, will be close to the heart of Leo the Lion the star Regulus.
   While the Moon may be close to the open star cluster the waxing gibbous Moon with its considerably greater apparent magnitude will outshine the star cluster making it not visible. Wait a few days and then aim your binoculars or low power eyepiece for a better view.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

Moon Meets the Twins


   Tuesday evening February 23rd the 12-day old waxing gibbous Moon will be about 2o from Pollux, one of the two ‘Twin’ stars of the constellation Gemini the Twins. The other brother is Castor, which is about 6o away from the Moon.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

February Moon at Ascending Node

   Saturday February 20th the 9-day old waxing gibbous Moon will be crossing the plane of the ecliptic moving north. This is known as the ascending node, one of two intersections the Moon’s orbital path has with the ecliptic. The ecliptic is actually the Earth’s orbit, and the Moon’s orbit is inclined about 6o from the ecliptic. So there are two node intersections, the ascending and descending nodes.

   On the day of the node crossing the 9-day old waxing gibbous Moon will be over the southwestern horizon later during the evening after sunset local time. Watch for the Moon to be about 8o from the reddish star Aldebaran in the open star cluster the Hyades in Taurus the Bull.

   Does our Moon actually go around the Earth as many graphics show? From our perspective on the Earth the Moon appears to circle around the Earth. However, in reality, the Moon orbits the Sun together with the Earth*
*Click here to read my Scope on the Sky column “The Real Shape of the Moon’s Orbit”. (PDF)
   
   
   
   
   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

Mercury – Saturn – Jupiter Together Again!

   Saturday morning February 20th in the hour or so before the Sun rises look for the innermost planet Mercury to be about 4-5o from Saturn and Jupiter. All three should fit within the field of view of binoculars, but the three planets will be low above the horizon.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

Sun Not In Pisces-2021


  According to the pseudoscience of astrology the Sun enters the constellation of Pisces the Fishes on Thursday February 18th. In fact the actual position of the Sun is still within the boundary of the constellation of Aquarius the Water Bearer, as this graphic shows. The Sun had just entered Aquarius 2 days ago.

   Read a little more about how astrology has the Sun incorrectly placed in a previous blog, and in another blog discussing the effects of precession.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

February Moon at Apogee

   Our Moon reaches apogee, (furthest from Earth), for this orbit, on Thursday February 18th. For this apogee the 7.25-day old waxing crescent Moon will be at a distance of 31.70 Earth diameters, 251,282 miles (404,400 km) from the Earth.

   On the date of the apogee Moon the nearly first quarter Moon will be high above the southern horizon and will be within a few degrees from the planet Mars.


   Does our Moon actually go around the Earth as this graphic shows? From our perspective on the Earth the Moon appears to circle around the Earth. However, in reality, the Moon orbits the Sun together with the Earth*
   *Click here to read my Scope on the Sky column “The Real Shape of the Moon’s Orbit”. (PDF)

   
   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to go to bobs-spaces.


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The Moon, Mars, and NASA’s Perseverance

   Thursday evening February 18th the 7-day old almost first quarter but still waxing crescent Moon will be about 3o from the ‘Red Planet’ Mars. Despite the -11.75 apparent magnitude of the Moon Mars, with an apparent magnitude of 0.75, will still be visible.

   
   NASA Perseverance is scheduled to land on Mars on 18 February 2021, at around 20 UT or 2 pm CST.

   
   
   
   
   
   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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Moon – Uranus Conjunction

   Wednesday evening February 17th the 6-day old waxing crescent Moon will be about 3-4o from the outer and ringed Planet Uranus. While the Moon with an apparent magnitude of -11.5 will certainly be visible, Uranus with an apparent magnitude of 5.81 will not!

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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Take a Deep Dive into Deep Space

   Take a deep dive into deep space at the DESI Legacy Imaging Surveys web site. This is an interactive display using a 10 trillion pixel composite picture of much of the night sky, based on different imaging data sets to create the image. The zoom-in is incredible as the billions of points of light resolve into galaxies, nebulae and other deep sky objects. Some of the datasets even show a spectral display. There are a number of ways to interact with the images including a way to flip back and forth between two images to watch for any objects in motion. Clicking on the screen will bring up options for joining a forum to ask or discuss what you are viewing. There are links to other information about that object or part of the sky.
   The video is a short tour of around Taurus and Orion.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


Also Follow me and other great resources at Feedspot.