Situated well above the 88% illuminated waxing gibbous moon tonight were two bright objects — one is the planet Mars and the other one is the star Regulus in the constellation Leo.
These three formed a nice cosmic triangle in the night sky just like what is shown above. (Please take note that the image was a composite.)
Reddish Mars has been in Leo close to the star Regulus for the past few weeks, and the two will remain companions all April. During May and June, Mars will drift away from Regulus, and will head toward the constellation Virgo where Saturn is currently residing.
Mars in the eastern sky at 9:51 pm | Quezon City, Philippines
We were sitting on one of those weird benches surrounding the trees in the open-air space of UP-Ayala Technohub after having a rewarding dinner when I noticed a red-orange star in the eastern sky infront of us. My brain told me that, based on its brightness and location it had to be Mars. It was hardly recognizable at first because the waxing gibbous moon was shining close to it. Moreover, we were situated in a very light-polluted area that my eyes were struggling to see those faint celestial objects near the horizon.
The red planet is back in the eastern sky at nightfall on these evenings. It is now in fact, one of the brightest “stars” (around -0.9 mag) in the night sky. It is growing even brighter and more prominent, especially towards the end of the month as it comes close to opposition to the Sun and its nearest pass to Earth.
Moon, Leo and Mars
Mars started to retrograde (move westward) toward the star Regulus in the constellation Leo last January 24. That happens whenever Earth is about to pass between the sun and Mars, which will happen on March 3, 2012. Mars has been brightening ever since retrograde motion began.
By the end of February, Mars will rise only 20 minutes after the Sun sets, so it will be easily seen by the time the sky darkens and will shine all-night long. By then Mars will have brightened to magnitude -1.2, nearly as bright as Sirius.