- Recorder Online - http://www.berthoudrecorder.com -
Sky Tonight—Feb 27, Moon and Venus in southeast before sunrise
Posted By admin On February 26, 2011 @ 10:34 pm In Earth & Sky | Comments Disabled
Courtesy of EarthSky
A Clear Voice for Science
Visit EarthSky at
 If it is clear in the wee hours before sunrise on February 28, there is no way that you can miss the waning crescent moon and the dazzling planet Venus in the east or southeast sky. After all, the moon and Venus rank as the second- and third-brightest heavenly bodies, respectively, after the sun.
From middle latitudes in the northern hemisphere, the moon and Venus will rise about 2 hours before the sun tomorrow. You cannot miss them if you rise early.
As viewed from middle latitudes in the southern hemisphere, the moon and Venus rise well over 3 hours before sunrise. That is because the ecliptic – the pathway of the sun, moon and planets – hits the horizon at a steep angle before sunrise in the southern hemisphere, but at a narrow angle before sunrise in the northern hemisphere.
In either the northern or the southern hemisphere, the ecliptic intersects the horizon at a narrow angle on late winter/early spring mornings, but almost perpendicularly on late summer/early autumn mornings. Because it is late winter in the northern hemisphere right now, the ecliptic crosses the horizon at a shallow angle in our morning sky.
Meanwhile, the moon’s rotational axis and Venus’ rotational axis – the axis these two worlds spin around – stand almost straight up and down relative to the plane of the ecliptic. That’s in contrast to our Earth, whose rotational axis tilts some 23.5 degrees out of perpendicular to the ecliptic – or the plane of the Earth’s orbital path around the sun.
Catch these two “upright” worlds – the moon and Venus – in the dawn and predawn hours on February 28, 2011!
By Bruce McClure 
EarthSky: Space 
Universe Today 
StarDate Online 
Sky and Telescope 
National Geographic 
Space Com 
Simostronomy Blog 
Amazing Space 
Scope City 
Article printed from Recorder Online: http://www.berthoudrecorder.com
URL to article: http://www.berthoudrecorder.com/2011/02/26/sky-tonight%e2%80%94feb-27-moon-and-venus-in-southeast-before-sunrise/
URLs in this post:
 www.EarthSky.org: http://www.EarthSky.org
 Image: http://www.berthoudrecorder.com/wp-content/uploads/2011/02/phase27.gif
 Image: http://www.berthoudrecorder.com/wp-content/uploads/2011/02/feb27.jpg
 Image: http://www.berthoudrecorder.com/wp-content/uploads/2011/02/brucemcclure.thumbnail1.jpg
 Bruce McClure: http://earthsky.org/team/brucemcclure/
 Astronomy Picture of the Day from NASA/JPL: http://antwrp.gsfc.nasa.gov/apod/
 EarthSky: Space: http://earthsky.org/space
 CHANDRA Photo Album: http://chandra.harvard.edu/photo/
 U.S. Naval Observator Astronomical Information cente: http://www.usno.navy.mil/USNO/astronomical-applications/astronomical-information-center/astronomical-information-center
 Universe Today: http://www.universetoday.com/
 StarDate Online: http://stardate.org/
 Sky and Telescope: http://www.skyandtelescope.com/observing/ataglance/
 National Geographic: http://news.nationalgeographic.com/news/
 Space Com: http://www.space.com/nightsky/
 Simostronomy Blog: http://simostronomy.blogspot.com/
 Amazing Space: http://amazing-space.stsci.edu/tonights_sky/
 The York County Astronomical Society: http://www.ycas.org/tonights_sky.htm
 Scope City: http://www.scopecity.net/
 James S McDonnell Planetarium: http://www.slsc.org/WhatToDo/Planetarium/NightSkyUpdate.aspx
Copyright © 2010 Berthoud Recorder. All rights reserved.