Look for daytime moon after sunrise September 14-18

Photo Credit: Dan Bush

Tonight for September 13, 2011

Because it’s only a day or two since the full Harvest Moon, the waning gibbous moon will rise in the east at dusk or early evening tonight (at middle and far northern latitudes). But that’s not all. You can see the moon in the west after sunrise, starting tomorrow.

Sylvia asks When is the best time to see the moon in the sky during daylight hours?

Sylvia, it’s easier to see a daytime moon when the moon is fairly far from the sun in the sky. When would that be? It would be around the time of full moon each month. A full moon is always 180 degrees from the sun, on the opposite side of the sky’s dome. Full moon was September 12, at 9:27 Universal Time (4:27 a.m. Central Daylight Time).

Generally, the full moon sets around sunrise. But the waning gibbous moon sets in the west after sunrise. In the next several mornings, after sunrise, look for the waning gibbous moon to sail over your western horizon during the morning hours. At mid-northern latitudes in North America, the moon will set at roughly 9 a.m. tomorrow, 10 a.m. on Thursday and 11:00 a.m. Friday.

Moon’s rising and setting time in your sky

By the way, the moon is up during the day half the time. It has to be, since it orbits around the whole Earth once a month. Sometimes the daytime moon is hard to see because it’s so near the sun in the sky. And consider that if the sun is low in the sky, a slim crescent daytime moon might be straight overhead, so that you’d have to crane your neck, looking up, to notice it.

September 2011 guide to the five visible planets

Ordinarily, we don’t look up during the day to see such a thin crescent moon. That’s one reason people are sometimes surprised to learn the moon is out so often during the day.

But as the moon gets farther from the sun in our sky, the portion of its lighted half turned in our direction increases. In other words, the farther the moon is from the sun, the larger the visible phase of the moon … and the easier to see a daytime moon. Starting on the 14th of September 2011, look for the daytime moon in the west after sunrise!

Understanding moon phases

Why isn’t there an eclipse every full moon?

Does the dark side of the moon really exist?

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19 Responses to Look for daytime moon after sunrise September 14-18

  1. rosani kowalik says:

    Has anyone noticed the bright light that the sun is enveloped during Sunrise? I can barely see through my windshield in the morning. It has happened on Sept 12 and Sept 13. Is there a phenomenon happening?
    thank you
    Rosani

  2. jerry says:

    what objects can be seen that are not in the milky way.

  3. jerry says:

    what obects can be seen with the naked eye not in the milky way.

  4. Warwick Lowe says:

    Time 9.55pm Tuesday 13th September 2011
    Could anyone please tell me the name of the star/planet
    that is showing low in the eastern sky?
    thanks

  5. Stephen Gray says:

    Same question as Warwick. What is the extraordinarily bright planet / star / object that is low in the sky just north of east ( 80 degreees?) now – at 22.40 hours British Summer Time . It was there last night too! Thanks

  6. Hilary Orrom says:

    Same question as Warwick and Stephen. It was so bright, even in a cloudy sky, that I originally thought it was a helicopter. Then I realised it hadn’t moved despite my having driven 10 miles.
    Any suggestions gratefully received

  7. Ricki Lynn Miller says:

    My Mom was in Ky on Sunday and is now in TN. The last two nights towards the Eastern Sky she has seen a large moving light. Brightly colored and moving in all directions. Any ideas of what this could be. She thinks it’s part of the broken space station.

  8. Bruce McClure says:

    Yes, everyone, that planet is Jupiter. For information on the planets in September, click on http://earthsky.org//astronomy-essentials/visible-planets-tonight-mars-jupiter-venus-saturn-mercury

  9. Mu2 says:

    Dear Earth Sky Team,
    First off, I’ve been hooked to your website for almost a year now.
    Great job, and keep it coming!

    I was surprised to see moon rise on east, late evening on the 12th Sep, 2011. Partly this was due to “apparent” fast movement rising of moon seen against backdrop of buildings in the eastern horizon.

    Why is this so pronounced? Is there some thing else at play?

    Thank you,
    -Mu2

  10. Machelle says:

    At about 9:12 EST 09-13-11 there was a flash of yellowish orange light NE next to the moon. The sky was clear no clouds. Any thought?

  11. Debra says:

    YES > Chasing the moon for photos the last couple of nights
    Spectacular Gift of Glow as in > Sky Bliss!

  12. bruce says:

    In Alaska, when I take a negative picture of the sun between 1pm and 4pm with my cell phone, am I seeing the daytime moon passing through? I can see a small round object nearby, just wondering.

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