2021, April 12: Mars Between the Horns

2021, April 12: Spica rises at sunset. An hour later it is low in the east-southeast. Corvus the Crow is nearby.
2021, April 12: Spica rises at sunset. An hour later it is low in the east-southeast. Corvus the Crow is nearby.

April 12, 2021: Spica rises at sunset.  It is low in the east-southeast during the early evening hours.  Mars is halfway up in the west  as it moves between the Bull’s horns.

by Jeffrey L. Hunt

Chicago, Illinois:  Sunrise, 6:15 a.m. CDT; Sunset, 7:29 p.m. CDT.  Check local sources for sunrise and sunset times for your location.

Spica rises at sunset.  One hour later it is 10° above the east-southeast horizon. 

The star is the 14th brightest star visible in the night skies of Earth and the 10th brightest visible from mid-northern latitudes.  At 250 light years, this star has an actual brightness of nearly 2,300 suns.

Spica is part of Virgo, a rather nondescript constellation that is above the star, while other stars are below the horizon during the early evening hours. 

The constellation Corvus the Crow, a trapezoid shape, is to Spica’s upper right early in the evening.

2021, April 12: Mars is about halfway up in the west after sunset nearly between the Bull’s horns.
2021, April 12: Mars is about halfway up in the west after sunset nearly between the Bull’s horns.

Farther west, Mars is about halfway up in the sky in front of the stars of Taurus.  It is nearly between Elnath and Zeta Tauri (ζ Tau on the chart), the Bull’s horns.

The Red Planet is 4.0° to the lower left of Elnath and 3.9° to the upper right of Zeta Tauri.  It is below a line that connects the stars.

During the next few evenings watch the planet move between the horns.

Here’s more about Mars during 2021.

Read about Mars during April.

Detailed Note: One hour before sunrise, Jupiter is nearly 11° in altitude above the east-southeast horizon.  Dimmer Saturn is 13.1° to the upper right of the Jovian Giant.  Among the stars of Capricornus, Jupiter is 2.4° to the upper left of Deneb Algiedi and 0.7° to the upper right of Mu Capricorni (μ Cap, m = 5.1).  Saturn is 1.9° to the upper right of θ Cap.  Use a binocular to spot the dimmer stars. Spica (α Vir, m = 1.0) rises at sunset.  One hour later, find it about 10° up in the east-southeast.  Farther westward, Mars is less than halfway up in the sky in the west in front of the stars of Taurus.  It is nearly between the horns of the Bull.  The planet is 4.0° to the lower left of Elnath and 3.9° to the upper right of ζ Tau.

Read more about the planets during April 2021.



Categories: Astronomy, Sky Watching

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