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Events, Moon, Planets in September Home Page Evènements du mois Monthly Sky Charts

still need the August edition?

NASA to Air Live the Cassini Mission's End!
NASA will air live Cassini's end by Friday Sept. 15, 2017, 7-8:30 a.m. EDT (11-12:30 GMT) with a live commentary on NASA TV and online. In addition, an uninterrupted, clean feed of cameras from JPL Mission Control, with mission audio only, will be available during the commentary on the NASA TV Media Channel and on Ustream. The expected time of last signal and science data from Cassini will be at bout 8 a.m. EDT (12:00 GMT). NASA TV is at https://www.nasa.gov/multimedia/nasatv/index.html

arrow back .Events .Moon .Planets .Minor Planets, NEOs .Comets .Shooting Stars .Occultations .Sun .check more! (occultations observers are advised to check in 'Events', and to turn to such dedicated sites like the I.O.T.A). don't forget to check the weather! For the US: the NOAA . color codes: Wwd worldwide, UsA USA-Americas, EuA Europe-Africa, AsP Asia-Pacific, Chk Check for Your Zone. check the site's concept and the instructions of use

arrow back thumbnail to Editor's choice fine picture Editor's Choice Fine Picture thumbnail to Editor's Sky At Editor's Choice Sky At RSS link icon link to the site's Discovery and Outdoor Packs! Tech News illustration and link to Tech News Tech News link to the site' goodies! color codes: Wwd worldwide, UsA USA-Americas, EuA Europe-Africa, AsP Asia-Pacific, Chk Check for Your Zone. check the site's concept and the instructions of use

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.Events Seen All Month Long .Ephemerides Proper

(data from yearly ephemerides generator at Fred Espenak's NASA's eclipse website; miscellaneous data with the 'Astronomical Phenomena for The Year 2017,' a joint work by the United Kingdom Hydrographic Office and the U.S. Naval Observatory; to be found at the latter's site; all time UT except otherwise stated)

illustration hinting to Events Concerning the Whole Month, in the Events section of the Events, Moon, Events page (no link) arrow back

Wwd Beginning by early September, Mars, where available like a morning star, is moving until Sep. 13 about Regulus, the bright star to constellation Leo, the Lion, with a closest reached about Sep. 6. Fine visual and photographic opportunities! The Moon will also come to add

Mars closing Regulus by dawn!Mars closing Regulus by dawn! picture site 'Amateur Astronomy' based upon Stellarium

Wwd Mercury, where available like a morning star, is seen as soon as by September 1st, performing a remarkable move which makes it remain close Regulus and Mars. A closest to Regulus, the bright star to constellation Leo, the Lion, is reached about Sep. 10 and the closest to Mars is about Sep. 16. Fine visual and photographic opportunities! The Moon will also come to add

Mercury closing Regulus!Mercury closing Regulus! picture site 'Amateur Astronomy' based upon Stellarium

Wwd Between September 17-23 Venus is seen passing at Regulus, the bright star to constellation Leo, the Lion, a closest being reached about on Sep. 20 and then Venus is moving towards Mars. Fine visual and photographic opportunities! The Moon will also come to add

Venus close to Regulus!Venus close to Regulus! picture site 'Amateur Astronomy' based upon Stellarium

Wwd Arcturus is a fine evening star worldwide except at the mid-soutern latitudes!

illustration hinting to Ephemerides Proper, in the Events section of the Events, Moon, Events page (no link) arrow back

1 (1) Wwd Alpha Aurigids shooting stars are usually active Aug. 25-Sept. 5-8 with their peak usually on Sep. 1 more at the date of the peak

1 (2) Wwd Alpha Aurigids usually are peaking on Sep. 1 more back

1 (3) Wwd Moon reaches a southernmost declination at 02:03 UT

4 Wwd Moon is at a descending node at 18:41 UT

6 Wwd Neptune is occulted by Moon by 05:00 UT! check more at such sites like "The International Occultation Timing Association" (I.O.T.A.); check too below

12 Wwd Aldebaran, the bright star to constellation Taurus, the Bull is occulted by Moon by 13:00 UT! check more at such sites like "The International Occultation Timing Association" (I.O.T.A.); check too below

13 Wwd Moon is at its perigee at 16:04 UT (distances non available)

14 Wwd Moon reaches a northernmost declination at 13:00 UT

17 (1) Wwd By dawn tomorrow morning, at all latitudes, in the USA-Americas area last crescent is close to Venus, Regulus, Mars, and Mercury. A remarkable closing! In the Asia-Pacific area, last crescent is close to Venus and Regulus that same morning as Mars and Mercury are not that far, and the reverse the next day! In the Europe-Africa area, the show is somewhat distended compared to the previous, with the Moon more distant on the first day, or the second. In any case, fine visual and photographic opportunities!

Tomorrow morning by dawn a remarkable closeness!Tomorrow morning by dawn a remarkable closeness! picture site 'Amateur Astronomy' based upon Stellarium

17 (2) Wwd Moon is at a ascending node at 18:28 UT

18 (1) Wwd Venus is occulted by Moon by 01:00 UT! check more at such sites like "The International Occultation Timing Association" (I.O.T.A.); check too below

18 (2) Wwd Regulus is occulted by Moon by 05:00 UT! check more at such sites like "The International Occultation Timing Association" (I.O.T.A.); check too below

18 (3) Wwd Mars is occulted by Moon by 20:00 UT! check more at such sites like "The International Occultation Timing Association" (I.O.T.A.); check too below

18 (4) Wwd Mercury is occulted by Moon by 23:00 UT! check more at such sites like "The International Occultation Timing Association" (I.O.T.A.); check too below

22 Wwd It is the autumnal equinox today, by 20:02. Nighttime equal daytime worldwide! check more details about Earth's seasons with our tutorial Seasons

26 UsA EuA First quartered Moon, by all latitudes is close to Saturn tonight as the show is available since the evening twilight in the northern hemisphere. Fine visual and photographic opportunities!

Moon is close to Saturn tonight!Moon is close to Saturn tonight! picture site 'Amateur Astronomy' based upon Stellarium

27 (1) AsP First quartered Moon, at all latitudes is close to Saturn tonight as the show is available since the evening twilight in the northern hemisphere. Fine visual and photographic opportunities!

27 (2) Wwd Moon is at its apogee at 06:49 UT (distances non available)

28 Wwd Moon reaches a southernmost declination at 10:06 UT

Occultations observers are advised to turn to such dedicated sites like the I.O.T.A as they may also check below at our Occultation section

arrow back Moon Home Page

Full Moon is on September 6th, at 07:03 UT
Last Quarter is on September 13th, at 06:25 UT
New Moon is on September 20th, at 05:30 UT
First Quarter is on September 28th, at 02:54 UT

(source: ephemeris generator at Fred Espenak's NASA's eclipse website)

arrow back Planets Home Page

Mercury is reaching a greatest western elongation on September 12th, at 09:59. Mercury is rapidly rising in the morning twilight like a morning star until its elongation and then equally rapidly descending. The show is of interest in the northern hemisphere, feeble at the Tropics and null in the southern hemisphere

Venus remains a fine morning star in the northern hemisphere and the Tropics as it is lower in the southern hemisphere

Venus keeps a fine morning star!Venus keeps a fine morning star! picture site 'Amateur Astronomy' based upon Stellarium

Mars now has reappeared like a morning star in the northern hemisphere and the Tropics as that is not true in the southern hemisphere

Jupiter, as it will reach a conjunction next month, is now tow tending to the horizon by the evening twilight, in the northern hemisphere. The gas giant remains a fine evening star at the Tropics and the southern hemisphere

Saturn now tends low by 10:30 p.m. local time in the northern hemisphere. By that time it is still high at the Tropics and the same, about West, in the southern hemisphere. Saturn constitutes a fine evening star in the northern hemisphere as it is too high to qualify such at the Tropics and the southern hemisphere. A ring maximum aperture is reached in 2017

Saturn a fine evening star!Saturn a fine evening star! picture site 'Amateur Astronomy' based upon Stellarium

Uranus Tending to its Best! is closing a opposition which will occur next month. It is already high now, East, by 10:30 p.m. local time in the northern hemisphere, higher before East in the Tropics. Uranus is also high and observable, tending to northeast, in the southern hemisphere

Uranus closing to its best now! picture site 'Amateur Astronomy' based upon Celestia

Neptune Faraway World At its Best Now! is reaching its year's best, or opposition on September 5th by 04:18. check more about such a configuration of a planet in our tutorial 'Planets Apparent Motion'. Neptune is now high, southeast, by 10:30 p.m. local time in the northern hemisphere, much high between East and southeast at the Tropics and the same, northeast, in the southern hemisphere

Neptune now at its year's best!Neptune now at its year's best! picture site 'Amateur Astronomy' based upon Celestia

Pluto remains relatively high and observable, between South and southwest in the northern hemisphere. It is high, about southwest, at the Tropics and high, West, in the southern hemisphere (according to the International Astronomical Union (IAU) since 2006, Pluto is not considered a planet anymore, but categorized like a dwarf planet instead along with Ceres, Eris, Makemake, and Haumea, and the prototype of a new category of 'trans-Neptunian', 'Pluto-class' objects)

arrow back Minor Planets, NEOs Home Page

.Minor Planets .Nearest NEOs

arrow back Minor Planets

Minor planets are those biggest asteroids in the Asteroid Belt which may be easily observed by amateurs from the Earth, namely Ceres, Pallas, Juno, and Vesta (due to the new categorization by the International Astronomical Union (IAU) by 2006, Ceres belongs to the 5 dwarf planets in the solar system with Pluto, Eris, Makemake, and Haumea). check data and charts at our section Minor Planets on the yearly Calendar page as our tutorial 'Asteroids and Asteroid Hunting' is of help too. Any remarkable event linked to a minor planet may have a notice here below

arrow back Nearest NEOs

Some small asteroids dubbed Near-Earth Objects (NEOs) are regularly making close approaches at Earth. People interested in such close approaches may obtain recent and upcoming data at NASA site Near-Earth Object Program (their section "Close Approaches"). Date, miss distance in AU or Lunar Distance (LD), estimated diameter, and relative velocity are available. For further observational purposes, check at the Near-Earth Object Program ephemeris Generator. For more about NEOs see tutorial "About NEOs"

arrow back Comets Home Page

Once every time, the solar system treats us with a remarkable comet, a eery view spanning up to thirty degrees of sky! Most of the time however comets are the domain of dedicated observers as mostly weak and, at the most, hovering at the limit of the naked-eye visibility. A good site to get information about current such comets is the British Astronomical Association Comet Section page or also the Weekly Information about Bright Comets page (which often points to comets close to the visual magnitude). Our 'Comets and Comet Hunting' tutorial will also be helpful. Remarkable comets otherwise usually will be presented below!

arrow back Shooting Stars Home Page

->of note: dates of swarms and peaks as given below are the average ones. More refined dates may be given in the Ephemerids section

->note: shooting stars afficionados will be aware of checking Moon at the dates of the showers

for more about the meteor showers of this month, for possible other meteor showers for this month, and for more about shooting stars, generally, see our tutorial "Shooting Stars"

arrow back Occultations Home Page

Each month, Moon occults some relatively bright stars, that is the Moon, beginning either with its bright or its dark visible face, is passing in front of a star. This is called an occultation. The Pleiades, on the other hand, due to their position near the eclipic, are often occulted by Moon too. Some planets, at last, along the year, may be occulted by Moon or they themselves, or their satellites, may be seen too occulting a star. The asteroids too may occult stars. Yearly lists of such phenomenons are to be found at Sky & Telescope/SkyTonight.com, either in their newsstand issues or at their site, as a list of occultations of most brilliant stars, the planets and the Pleiades are available at the I.O.T.A site (I.O.T.A. stands for "The International Occultation Timing Association"). Most notable occultations are signaled below

Neptune back is occulted by Moon on September 6th by 05:00 UT! The show is available in most of Antarctica, S.E. South America, and South Georgia. check more at such sites like "The International Occultation Timing Association" (I.O.T.A.)

Aldebaran back, the bright star to constellation Taurus, the Bull is occulted by Moon on September 12th by 13:00 UT! The show is available in Hawaii, Central most of North America, and the Azores. check more at such sites like "The International Occultation Timing Association" (I.O.T.A.)

Venus back is occulted by Moon on September 18th by 01:00 UT! The show is available in S.E. Asia, Australia, and New Zealand. check more at such sites like "The International Occultation Timing Association" (I.O.T.A.)

Regulus back is occulted by Moon on September 18th by 05:00 UT! The show is available in N.E. Africa, Middle East, S.E. Asia, and N. Australia. check more at such sites like "The International Occultation Timing Association" (I.O.T.A.)

Mars back is occulted by Moon on September 18th by 20:00 UT! The show is available in N.E. Micronesia, Hawaii, Galapagos Is., and N.W. South America. check more at such sites like "The International Occultation Timing Association" (I.O.T.A.)

Mercury back is occulted by Moon on September 18th by 23:00 UT! The show is available in Easternmost Asia, Micronesia, and N. Polynesia. check more at such sites like "The International Occultation Timing Association" (I.O.T.A.)

check on this site for more about occultations, theoretically

arrow back Sun Home Page

CAUTION! OBSERVING THE SUN IS DANGEROUS AND REQUIRES DEDICATED SAFE TECHNIQUES!

click to last Sun

Website Manager: G. Guichard, site 'Amateur Astronomy,' http://stars5.6te.net. Page Editor: G. Guichard. last edited: 9/1/2017. contact us at geguicha@outlook.com