April 20, 2021: Bright Jupiter and Saturn are in the southeastern sky before sunrise, gently moving eastward compared to the starry backdrop of Capricornus.
by Jeffrey L. Hunt
Chicago, Illinois: Sunrise, 6:02 a.m. CDT; Sunset, 7:38 p.m. CDT. Check local sources for sunrise and sunset times for your location.
Morning planets Jupiter and Saturn are in the southeast before sunrise. One hour before sunrise, Jupiter is over 13° above the east-southeast horizon. It is the brightest star in the region, and it outshines all other stars in the sky this morning.
Look at Jupiter with a binocular, you can see up to four of its largest satellites. The binocular also reveals the starry background. The Jovian Giant is 3.4° to the upper left of Deneb Algiedi (δ Cap on the chart), 0.5° to the lower left of Mu Capricorni (μ Cap) and 2.6° to the upper right of Iota Aquarii (ι Aqr). Jupiter is nearing the Aquarius – Capricornus border.
Saturn is dimmer than Jupiter, and 14.1° to the upper right of Jupiter. The Ringed Wonder is slowly inching toward Theta Capricorni (θ Cap.)
Detailed Note: The moon is at its First Quarter phase at 1:59 a.m. CDT. One hour before sunrise, Jupiter is over 13° above the east-southeast horizon. In the starfield, Jupiter is 3.4° to the upper left of Deneb Algiedi, 0.5° to the lower left of μ Cap, and 2.6° to the upper right of ι Aqr. Saturn – 14.1° to the upper right of Jupiter – is 1.5° to the upper right of θ Cap. The Ringed Wonder is 18.0° up in the southeast. Twenty minutes after sunset, brilliant Venus is nearly 2° above the west-northwest horizon as it makes its first evening appearance. An hour after sunset, Mars is about 40° up in the west, 5.0° to the upper right of ζ Tau. The Red Planet is 3.7° to the lower right of M35. Use a binocular to see the star cluster. The moon (9.0d, 58%) is nearly 70° up in the south-southwest. It is between Pollux and Regulus (α Leo, m = 1.3), nearly 17° to the lower left of Pollux and 20° to the upper right of Regulus. Even with the moon’s brightness, use a binocular to spot the Beehive star cluster (M44, NGC 2632), 3.9° to the lower right of the moon.
Read more about the planets during April 2021.
May 13, 2021: Venus, Mercury, the crescent moon, and Mars are in the western sky after sunset.
May 13, 2021: Bright Jupiter and Saturn are the morning planets in the southeast before sunrise.
May 12, 2021: Thirty minutes after sunset, the razor-thin moon is 1.2° to the left of brilliant Venus. This is the closest grouping of the moon and Venus during this evening appearance of the brilliant planet. Mercury is 9.1° to the upper left of Venus. Mars maintains its eastward march in Gemini. Sirius and Aldebaran are near their heliacal settings, their final appearances in the evening sky for the year.
May 12, 2021: Before sunrise bright Jupiter, in front of Aquarius, is in the southeast before sunrise. Saturn is to the upper right of Jupiter, in Capricornus. In a few mornings, Saturn begins to retrograde.
May 11, 2021: The planet parade continues today. Five planets are on display. Bright Jupiter and Saturn are in the southeastern sky before sunrise. After sundown, brilliant Venus, Mercury, and Mars are in the western sky. The moon is at its New phase and at apogee today.