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CentaurZ

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About CentaurZ

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    Nebula

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    https://www.CurtRenz.com/astronomy.html

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    Male
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    Chicagoland
  1. Uranus will appear in opposition to the Sun during the night of 2018 OCT 23-24. At magnitude +5.7 it normally would be visible to sharp naked eyes under dark skies. However the Full Moon barely south (beneath for northern hemisphere observers) of Neptune in Pisces will provide substantial interference. Better viewing opportunities may be presented a week or so on either side of the Full Moon. Photos and descriptions of Uranus would be welcome additions to this thread.
  2. CentaurZ

    Lunar X - 2018 OCT 16

    The Lunar X may be seen by telescopic observers in Europe and the Americas during Tuesday 2018 OCT 16 for an approximately four-hour period centered on 16:09 CDT (21:09 UT). This will be an evening event in Europe, and an afternoon event in the Americas. The X should appear as the Sun rises on the clustered rims of the craters Blanchinus, La Caille and Purbach, while a waxing Half Moon graces the sky. This is something to check-off from your astronomical “to-do” list. Photos and descriptions of the Lunar X would be welcome additions to this thread.
  3. The annual Orionid Meteor Shower may already be underway. It is expected to peak during the night of 2018 OCT 20-21. Its radiant is in the constellation Orion. That is the direction toward which the meteor tails point, but the meteors are equally likely to appear anywhere in your sky. The Orionids are debris from the famous periodic comet 1P/Halley. At the peak between 10 and 70 meteors per hour may be seen by some sharp eyed folks. The show begins after Orion rises in the late evening and intensifies until morning twilight. Since Orion lies on the celestial equator, the shower is easily observed from all geographic latitudes. The waxing gibbous Moon during the shower peak this year may provide some interference until it sets a few hours before sunrise. Descriptions of the shower or perhaps even lucky photos would be welcome additions to this thread.
  4. The waxing nearly Half Moon will occult (cover) the magnitude +3.8 star Omicron Sagittarii for observers in North America during the evening of Monday 2018 OCT 15. For Chicagoland observers, an unusual 13-month drought will follow for nighttime lunar occultations of planets and stars brighter than magnitude +4.1. The current series of 19 monthly Omicron Sagittarii occultations extends from 2018 JUN 01 to 2019 OCT 05. However the large majority are not visible at nighttime from any particular location. The next series will commence on 2028 OCT 23. The upcoming immersion will occur on the lunar dark limb and emersion on the bright limb. Observers on a graze path will witness the star winking on and off as lunar hills and valleys pass by. Those between the two paths will see a full occultation. Photos and descriptions of the occultation would be welcome additions to this thread. If you would like specific occultation or graze predictions for your location, please reply to this post with your longitude, latitude, elevation and time zone.
  5. CentaurZ

    October New Moon Spotting

    It’s nearly time for my monthly New Moon spotting challenge. I use the term New Moon in its classical sense of one’s first sighting of the Moon after its monthly solar conjunction. Some sharp-eyed North Americans with clear skies might be able to spot the less than one-day-old Moon after sunset on Tuesday, October 9. Others should have better luck during the following evening. Photos and descriptions of the young crescent Moon this month would be welcome additions to this thread. Below is a photo that I shot from Arlington Heights, Illinois of the Moon on 2011 OCT 28 at 18:18 CDT while it was aged 2.14 days.
  6. The waning crescent Moon will occult (cover) the magnitude +3.9 star Delta Cancri for observers in North America during the early morning of 2018 OCT 04. The current series of 19 monthly Delta Cancri occultations extends from 2017 NOV 10 to 2019 MAR 17. However the large majority are not visible at nighttime from any particular location. The next series will commence on 2026 NOV 29. The upcoming immersion will occur on the lunar bright limb and emersion on the dark limb. Observers on a graze path will witness the star winking on and off as lunar hills and valleys pass by. Those between the two paths will see a full occultation. Photos and descriptions of the occultation would be welcome additions to this thread. If you would like specific occultation or graze predictions for your location, please reply to this post with your longitude, latitude, elevation and time zone.
  7. CentaurZ

    Tour of Yerkes Observatory

    As scheduled, the University of Chicago closed Yerkes Observatory to the public today. Last week I communicated by email and phone with Williams Bay activist Dianna Colman who chairs the Yerkes Futures Foundation. She said the situation is complicated and something may still get done. Here's a link to today's article in the Chicago Tribune: http://www.chicagotribune.com/news/ct-met-yerkes-observatory-closing-university-of-chicago-20180930-story.html
  8. CentaurZ

    Tour of Yerkes Observatory

    Now is your last chance. Today, tomorrow and Saturday are officially the final dates for you to visit Yerkes Observatory before it permanently closes. There are two groups that have been seeking to keep it running, but success appears to have eluded them.
  9. The waxing gibbous Moon will occult (cover) the magnitude +2.8 star Delta Capricorni for observers in eastern North America, the northern British Isles, Iceland and Greenland during the night of 2018 SEP 21-22. This is the 14th brightest star for which occultations are possible. The current series of 23 monthly Delta Capricorni occultations extends from 2018 JUN 04 to 2020 FEB 22, with an interruption in late December of 2019. However the large majority are not visible at nighttime from any particular location. The next series will commence on 2024 JUN 25. The upcoming immersion will occur on the lunar dark limb and emersion on the bright limb. Observers on the only graze path will witness the star winking on and off as lunar hills and valleys pass by. Those north of the path will see a full occultation. Photos and descriptions of the occultation would be welcome additions to this thread. If you would like specific occultation or graze predictions for your location, please reply to this post with your longitude, latitude, elevation and time zone.
  10. It’s nearly time for my monthly New Moon spotting challenge. Sharp-eyed North Americans with clear skies might be able to spot the more than one-day-old Moon after sunset on Monday, September 10. Others should have better luck during the following evening. Photos and descriptions of the young crescent Moon this month would be welcome additions to this thread. Below is a photo that I shot from Arlington Heights, Illinois of the Moon on 2007 SEP 13 at 19:36 CDT while it was aged 2.5 days.
  11. The periodic Comet 21P/Giacobini-Zinner will appear to pass the bright star Capella in Auriga with an angular separation of 43 arcminutes on 2018 SEP 02 at 22:44 CDT (03 at 03:44 UT). Greatest brilliance for the comet is expected on SEP 10 at magnitude +10.9 based on JPL predictions, although some observers have been reporting it to be significantly brighter. The comet will appear to pass near the star cluster M37 on SEP 09 and through M35 on SEP 15. Photos and descriptions of the comet would be welcome additions to this thread.
  12. The shadows of Jupiter’s Galilean satellites #1 Io and #2 Europa will appear in simultaneous transit across Jupiter during the evening of Thursday 2018 AUG 23 for North American observers. Photos and descriptions of the event would be welcome additions to this thread.
  13. CentaurZ

    Lunar X - 2018 AUG 18

    The Lunar X may be seen by telescopic observers in Europe and the Americas during Saturday 2018 AUG 18 for an approximately four-hour period centered on 14:52 CDT (19:52 UT). This will be an evening event in Europe and an afternoon event in the Americas. The X should appear as the Sun rises on the clustered rims of the craters Blanchinus, La Caille and Purbach, while a waxing Half Moon graces the sky. This is something to check-off from your astronomical “to-do” list. Photos and descriptions of the Lunar X would be welcome additions to this thread.
  14. The shadows of Jupiter’s Galilean satellites #1 Io and #2 Europa will appear in simultaneous transit across Jupiter during the afternoon and evening of Thursday 2018 AUG 16 for North American observers. Photos and descriptions of the event would be welcome additions to this thread.
  15. Elusive Mercury has commenced its apparition in the predawn eastern sky following its inferior conjunction between Earth and Sun on 2018 AUG 08. Photos and descriptions of Mercury during this apparition would be welcome additions to this thread.
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