Skywatch Line Archive

Skywatch Line for Monday and Tuesday, August 20th and 21st, 2018

This is the Skywatch Line for Monday and Tuesday, August 20th and 21st. The Sun sets at 7:49 PM; night falls at 9:35. Dawn breaks at 4:22 AM and ends with sunrise at 6:08. The evening planetary parade continues. Venus, in Virgo, blazes with minus 4th magnitude low in the western sky. Our binoculars or telescope reveals it to be about 47% lit, but 25 arc-seconds in size. It sets at 9:22 PM. Jupiter is moderately low in the southwestern sky, blazes at minus 2nd magnitude and is a large 35 arc-seconds in size. It continues to accompany Libra’s bright… Continue reading

Posted in | Comments Off on Skywatch Line for Monday and Tuesday, August 20th and 21st, 2018

Skywatch Line for Friday, August 17 through Sunday, August 19, 2018

This is Dudley Observatory’s Skywatch Line for Friday, August 17 through Sunday, August 19, written by Sam Salem. On Friday, the Sun rises at 6:04am and sets at 7:55pm; the waxing gibbous Moon rises at 1:04pm and sets at 11:46pm. The first quarter Moon occurs on Saturday at 3:48am, however, the Moon will have set just around midnight that night. On Saturday evening, the stars marking the head of constellation Scorpius line up nearly vertically below the Moon. On Saturday and Sunday, use the Moon to find the star Antares, the brightest star in Scorpius the Scorpion, and the planet… Continue reading

Posted in | Comments Off on Skywatch Line for Friday, August 17 through Sunday, August 19, 2018

Skywatch Line for Wednesday, August 15th , and Thursday, August 16th, 2018

This is the Dudley Observatory Skywatch Line for Wednesday, August 15th , and Thursday, August 16th, written by Louis Suarato. The 21% illuminated, waxing gibbous Moon rises at 10:47 a.m., and sets at 10:40 Wednesday night. Look over the west-southwestern horizon after sunset to see the crescent Moon 17 degrees above, and to the left of Venus. Venus is now 50% illuminated. You’ll find Jupiter 22 degrees to the south of the Moon. Thursday, Jupiter will be 7 degrees to the left of the waxing crescent Moon. Also on Thursday, look at Jupiter through a telescope before 10:14 p.m. to… Continue reading

Posted in | Comments Off on Skywatch Line for Wednesday, August 15th , and Thursday, August 16th, 2018

Skywatch Line for Monday and Tuesday, August 13th and 14th, 2018

This is the Skywatch Line for Monday and Tuesday, August 13th and 14th. The Sun sets at 8 PM; night falls at 9:49. Dawn begins at 4:11 AM and ends with the Sun rising at 6 AM. The evening planetary parade continues. Venus, in Virgo, is the brightest planet, but low on the western horizon. It blazes with minus 4th magnitude and appears about half illuminated. As it approaches Earth, it appears larger, but thinner. Watch Venus in binoculars or small scope and see its crescent diminish. Venus sets at 9:38 PM. Jupiter is next and shines with minus 2nd… Continue reading

Posted in | Comments Off on Skywatch Line for Monday and Tuesday, August 13th and 14th, 2018

Skywatch Line for Friday, August 10 through Sunday, August 12, 2018

This is Dudley Observatory’s Skywatch Line for Friday, August 10 through Sunday, August 12, written by Sam Salem. On Friday, the Sun rises at 5:57am and sets at 8:05pm; the waning crescent Moon rises at 4:46am and sets at 7:45pm. The new Moon occurs on Saturday at 5:58am. Watch Venus, at magnitude –4.4, 45 minutes after sunset. Venus, sits about 10 degrees above the west-southwest horizon. Jupiter shines at magnitude –2.1 and is positioned well past the meridian at dusk. Saturn, at magnitude 0.2, culminates at around 10:15pm. Mars, at magnitude –2.7, is brighter than Jupiter. Mars is highest in… Continue reading

Posted in | Comments Off on Skywatch Line for Friday, August 10 through Sunday, August 12, 2018

Skywatch Line for Wednesday, August 8th, and Thursday, August 9th, 2018

This is the Dudley Observatory Skywatch Line for Wednesday, August 8th, and Thursday, August 9th, written by Louis Suarato. The 6% illuminated, waning crescent Moon rises at 3:44 a.m. Thursday in the constellation Gemini, to the lower right of its brightest stars, Castor and Pollux. Venus, Jupiter, Saturn and Mars continue to be the highlights of the evening sky. All four can be seen above their respective horizons before 9:47 p.m. when Venus sets. Mercury reaches inferior conjunction Thursday, and will be lost in the glow between the Sun and Earth. Mercury will return to the morning sky toward the… Continue reading

Posted in | Comments Off on Skywatch Line for Wednesday, August 8th, and Thursday, August 9th, 2018

Skywatch Line for Monday and Tuesday, August 6th and 7th, 2018

This is the Skywatch Line for Monday and Tuesday, August 6th and 7th. The Sun sets at 8:09 PM; night falls at 10:03. Dawn breaks at 4:00 AM and ends with the Sun rising at 5:53. The parade of bright evening planets continues; it spans 120º across the sky. Venus, in Leo, blazes with minus 4th magnitude 13º low on the western horizon. This month, Venus brightens and grows larger in our instruments, but thins its crescent from 57% to 40%; it also closes in on Spica. Venus sets at 9:54 PM. Jupiter, in Libra, radiates with minus 2nd magnitude… Continue reading

Posted in | Comments Off on Skywatch Line for Monday and Tuesday, August 6th and 7th, 2018

Skywatch Line for Friday, August 3 through Sunday, August 5, 2018

This is Dudley Observatory’s Skywatch Line for Friday, August 3 through Sunday, August 5, written by Sam Salem. On Friday, the Sun rises at 5:49am and sets at 8:14pm; Moon sets at 12:20pm and rises at 11:51pm. Last quarter Moon occurs on Saturday at 2:18pm. Once the last quarter Moon is well up, spot the Pleiades to its left and Aldebaran, the brightest star in constellation Taurus, below the Pleiades. Venus, at magnitude –4.3, loses a little altitude each week. Jupiter, at magnitude –2.1, sets around midnight. Saturn, at magnitude 0.2, reaches transit altitude at roughly 10:15pm. Mars is at… Continue reading

Posted in | Comments Off on Skywatch Line for Friday, August 3 through Sunday, August 5, 2018

Skywatch Line for Wednesday, August 1st, and Thursday, August 2nd, 2018

This is the Dudley Observatory Skywatch Line for Wednesday, August 1st, and Thursday, August 2nd, written by Louis Suarato. The Moon sets at 10:17 a.m., and rises at 10:58 p.m., Wednesday, as a 75% illuminated, waning gibbous Moon. At 9:20 p.m., Mars, above the southeastern horizon, and Venus, above the western horizon, are at the same altitude of 7.5 degrees. Although Mars is at its brightest, outshining Jupiter, Venus is still brighter by about 2 magnitudes. Jupiter shines at magnitude -2.10 between the two, about 25 degrees above the southwestern horizon. Saturn can be found about 20 degrees over the… Continue reading

Posted in | Comments Off on Skywatch Line for Wednesday, August 1st, and Thursday, August 2nd, 2018

Skywatch Line for Monday and Tuesday, July 30th and 31st, 2018

This is the Skywatch Line for Monday and Tuesday, July 30th and 31st. The Sun sets at 8:18 PM; night falls at 10:16. Dawn breaks at 3:48 AM and ends with the Sun rising at 5:46. The evening sky presents four bright planets. Venus, in Leo, is the brightest at minus 4th magnitude, appears about half lit, and about 14º above the western horizon. It sets at 10:08 PM. Jupiter, still in Libra, glows with minus 2nd magnitude and stands 27º high in the southern sky. While binoculars will reveal several of the planet’s moons; telescopes allow viewers to witness… Continue reading

Posted in | Comments Off on Skywatch Line for Monday and Tuesday, July 30th and 31st, 2018