Total Solar Eclipse: 21 August 2017

For up to 2 1/2 minutes on the afternoon of Monday August 21, 2017 the sky will go dark, the stars will come out, and the beautiful solar corona will be on display for those along the eclipse centerline.

Link to Google Interactive Map and Path Of Totality Data: http://tinyurl.com/2017pathoftotality


*solar corona courtesy of kongregate.com*
*map courtesy of xavier m. jubier*

http://tinyurl.com/saberdoesthestars-vol1
http://tinyurl.com/saberdoesthestars-vol2

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Extreme Crescent Hunting Tips

Saber’s Beads: The “string of pearls” arc of illuminated lunar peaks seen prior to the first complete crescent. Note the striking resemblance to the moments just before and after a total solar eclipse. (27 May 2006. raw image credit: maurice collins/ltvt)​

The moonrise before and moonset after each New Moon offer stargazers the opportunity to view the thinnest lunar crescents. There are many websites and apps that provide exact moonrise/set data for any location. Here are some additional tips to maximize your chances of sighting our very young (or old) moon.

Set up at a site with as much altitude as possible overlooking an unobstructed horizon. Optimal sky transparency allows the crescent to be detected and tracked down to, or up from, the horizon. Using a telescope or binoculars (mounted binos are recommended), fine tune the focus on Venus, Jupiter, or one of the brighter stars beforehand. For dusk attempts, have Sol’s setting azimuth on hand- making note after sunset of a random landmark at that position for reference- as well as Luna’s altaz position at sunset thru moonset. Accordingly, for dawn attempts, have Luna’s altaz info for moonrise thru sunrise. As dawn slivers have the advantage of possible detection with dark-adapted eyes, wearing sunglasses during the day prior to sunset attempts is recommended for maximum ‘dusk’ adaptation. Once the crescent is acquired in binoculars, walk the bino down to the horizon/random landmark in consecutive FOVs for the approximate naked-eye altaz. A favorable elongation is important. In the 24 hours before or after New Moon, Luna’s angular separation from Sol can vary by several degrees. With a favorable ecliptic, net elongations (as altitude) of 6° or more at sunset or moonrise offer the best window for detection. Observers nearer to the equator than the poles enjoy a much greater frequency of steep ecliptics. Illuminated fractions of same-age crescents within 24 hours of New Moon can vary by 200% and a full magnitude of brightness due to distance, libration, and sun angle. Slivers near perigee help present a thicker and brighter lunar profile for personal record crescent spotting. Last but not least, don’t always count-out a shallow ecliptic. Occasionally our moon’s extreme northern or southern declination will compensate for a less than favorable ecliptic angle.

BRACKETING THE SLIVERS

Another rare and challenging notch for ones lunar bedpost is to catch the consecutive waning and waxing crescents within 24 hours on each side of New Moon. For example, the July 2008 Buck Moon offered such an opportunity as I was able to spot both the -16.5 hour illumination before sunrise on the 2nd and the +23.5 hour sliver just after sunset on the 3rd. Clean horizons for both windows is a gift in itself.

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[exerpt from Saber Does The Stars by Stephen Saber] http://c14isawesome.blogspot.com

http://saberdoesthestars.wordpress.com

http://saberscorpx.vidmeup.com

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sitting in plato: earth viewed from the moon 

simulated pics as seen from the lunar crater plato *courtesy of celestia*

earth occults the pleiades (messier 45)

earth visits the hyades (caldwell 41)

earth occults saturn

earth occults mars

earth occults sol (total solar eclipse)

a total solar eclipse from earth is seen as a shadow transit from the moon


full shadow transit vidclip at http://saberscorpx.vidmeup.com

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saber does the stars at 

http://c14isawesome.blogspot.com

http://saberdoesthestars.wordpress.com

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2017 celestial events


(all times GMT)

Jan 02 09:20 Venus 1.9°S of Moon
    02 18:14 Moon at Descending Node
    03 06:47 Mars 0.2°S of Moon: Occn.
    03 14 Quadrantid Meteor Shower
    04 15 Earth at Perihelion: 0.98331 AU
    05 19:47 FIRST QUARTER MOON
    09 09 Mercury 6.7° of Saturn
    09 14:07 Aldebaran 0.4°S of Moon
    10 06:07 Moon at Perigee: 363242 km
    12 11:34 FULL MOON
    12 13 Venus at Greatest Elong: 47.1°E
    13 13:59 Beehive 3.9°N of Moon
    15 04:07 Regulus 0.9°N of Moon
    15 10:44 Moon at Ascending Node
    19 05:26 Jupiter 2.7°S of Moon
    19 10 Mercury at Greatest Elong: 24.1°W
    19 22:14 LAST QUARTER MOON
    22 00:14 Moon at Apogee: 404913 km
    24 10:37 Saturn 3.6°S of Moon
    26 00:46 Mercury 3.7°S of Moon
    28 00:07 NEW MOON
    29 22:21 Moon at Descending Node
    31 13:11 Jupiter 3.5°N of Spica
    31 14:34 Venus 4.1°N of Moon

Feb 01 01:09 Mars 2.3°N of Moon
    04 04:19 FIRST QUARTER MOON
    05 21:14 Aldebaran 0.2°S of Moon
    06 13:59 Moon at Perigee: 368817 km
    07 14 Mercury at Aphelion
    09 23:46 Beehive 3.9°N of Moon
    11 00:33 FULL MOON
    11 00:44 Pen. Lunar Eclipse; mag=0.988
    11 14:04 Regulus 0.8°N of Moon
    11 19:49 Moon at Ascending Node
    15 14:55 Jupiter 2.7°S of Moon
    18 19:33 LAST QUARTER MOON
    18 21 Jupiter at Aphelion
    18 21:14 Moon at Apogee: 404376 km
    20 16 Venus at Perihelion
    20 23:44 Saturn 3.6°S of Moon
    26 06:28 Moon at Descending Node
    26 14:53 Annular Solar Eclipse; mag=0.992
    26 14:58 NEW MOON 

Mar 01 18:58 Mars 4.3°N of Moon
    02 02 Neptune in Conjunction with Sun
    03 07:24 Moon at Perigee: 369065 km
    05 02:38 Aldebaran 0.2°S of Moon
    05 11:32 FIRST QUARTER MOON
    07 00 Mercury at Superior Conjunction
    09 07:12 Beehive 3.9°N of Moon
    10 22:20 Regulus 0.8°N of Moon
    11 04:17 Moon at Ascending Node
    12 14:54 FULL MOON
    14 20:04 Jupiter 2.5°S of Moon
    18 17:25 Moon at Apogee: 404651 km
    20 10:29 Vernal Equinox
    20 10:49 Saturn 3.4°S of Moon
    20 15:58 LAST QUARTER MOON
    23 14 Mercury at Perihelion
    25 11 Venus at Inferior Conjunction
    25 15:41 Moon at Descending Node
    28 02:57 NEW MOON
    30 12:39 Moon at Perigee: 363855 km
    30 13:03 Mars 5.5°N of Moon

Apr 01 08:50 Aldebaran 0.3°S of Moon
    01 10 Mercury at Greatest Elong: 19.0°E
    03 18:39 FIRST QUARTER MOON
    05 12:45 Beehive 3.8°N of Moon
    07 04:30 Regulus 0.7°N of Moon
    07 09:14 Moon at Ascending Node
    07 21 Jupiter at Opposition
    10 21:20 Jupiter 2.2°S of Moon
    11 06:08 FULL MOON
    14 06 Uranus in Conjunction with Sun
    15 10:05 Moon at Apogee: 405478 km
    16 18:39 Saturn 3.2°S of Moon
    19 09:57 LAST QUARTER MOON
    20 06 Mercury at Inferior Conjunction
    21 08:16 Mars 3.4°S of Pleiades
    21 22:30 Moon at Descending Node
    22 12 Lyrid Meteor Shower
    23 17:59 Venus 5.2°N of Moon
    26 12:16 NEW MOON
    27 16:18 Moon at Perigee: 359325 km
    28 17:19 Aldebaran 0.5°S of Moon

May 02 18:23 Beehive 3.6°N of Moon
    03 02:47 FIRST QUARTER MOON
    04 09:49 Regulus 0.5°N of Moon
    04 10:42 Moon at Ascending Node
    05 01 Eta-Aquarid Meteor Shower
    05 13:51 Mars 6.1°N of Aldebaran
    07 21:24 Jupiter 2.1°S of Moon
    10 21:43 FULL MOON
    12 19:51 Moon at Apogee: 406212 km
    13 23:07 Saturn 3.1°S of Moon
    17 23 Mercury at Greatest Elong: 25.8°W
    19 00:33 LAST QUARTER MOON
    19 01:30 Moon at Descending Node
    22 12:32 Venus 2.4°N of Moon
    24 01:20 Mercury 1.6°N of Moon
    25 19:44 NEW MOON
    26 01:23 Moon at Perigee: 357210 km
    30 01:50 Beehive 3.4°N of Moon
    31 11:56 Moon at Ascending Node
    31 16:08 Regulus 0.3°N of Moon

Jun 01 12:42 FIRST QUARTER MOON
    03 11 Venus at Greatest Elong: 45.9°W
    03 23:57 Jupiter 2.3°S of Moon
    07 03:19 Mercury 5.3°S of Pleiades
    08 22:21 Moon at Apogee: 406402 km
    09 13:10 FULL MOON
    10 01:25 Saturn 3.1°S of Moon
    13 00 Venus at Aphelion
    15 02:40 Moon at Descending Node
    15 09 Saturn at Opposition
    17 11:33 LAST QUARTER MOON
    19 13 Mercury at Perihelion
    20 21:13 Venus 2.4°N of Moon
    21 04:25 Summer Solstice
    21 14 Mercury at Superior Conjunction
    22 14:23 Aldebaran 0.5°S of Moon
    23 10:49 Moon at Perigee: 357938 km
    24 02:31 NEW MOON
    26 11:18 Beehive 3.2°N of Moon
    27 16:26 Moon at Ascending Node
    28 00:26 Regulus 0.1°N of Moon

Jul 01 00:51 FIRST QUARTER MOON
    01 07:28 Jupiter 2.7°S of Moon
    03 20 Earth at Aphelion: 1.01668 AU
    05 00:21 Venus 6.5°S of Pleiades
    06 04:27 Moon at Apogee: 405934 km
    07 03:34 Saturn 3.2°S of Moon
    09 04:07 FULL MOON
    10 01:33 Mercury 0.1°N of Beehive
    12 05:17 Moon at Descending Node
    13 18:03 Venus 3.1°N of Aldebaran
    16 19:26 LAST QUARTER MOON
    19 23:37 Aldebaran 0.4°S of Moon
    20 11:13 Venus 2.7°N of Moon
    21 17:09 Moon at Perigee: 361238 km
    23 09:46 NEW MOON
    25 00:46 Moon at Ascending Node
    25 08:49 Mercury 0.9°S of Moon: Occn.
    25 10:14 Regulus 0.0°S of Moon
    25 17:03 Mercury 0.8°S of Regulus
    27 00 Mars in Conjunction with Sun
    28 03 Delta-Aquarid Meteor Shower
    28 20:15 Jupiter 3.1°S of Moon
    30 04 Mercury at Greatest Elong: 27.2°E
    30 15:23 FIRST QUARTER MOON 

Aug 02 13 Mercury at Aphelion
    02 17:55 Moon at Apogee: 405026 km
    03 07:31 Saturn 3.5°S of Moon
    07 18:11 FULL MOON
    07 18:20 Partial Lunar Eclipse; mag=0.246
    08 10:56 Moon at Descending Node
    12 19 Perseid Meteor Shower
    15 01:15 LAST QUARTER MOON
    16 06:39 Aldebaran 0.4°S of Moon
    18 13:14 Moon at Perigee: 366129 km
    19 04:45 Venus 2.2°N of Moon
    20 07:15 Beehive 3.2°N of Moon
    20 18:08 Venus 7.2°S of Pollux
    21 10:34 Moon at Ascending Node
    21 18:26 Total Solar Eclipse; mag=1.031
    21 18:30 NEW MOON
    25 13:00 Jupiter 3.5°S of Moon
    26 21 Mercury at Inferior Conjunction
    29 08:13 FIRST QUARTER MOON
    30 11:25 Moon at Apogee: 404307 km
    30 14:23 Saturn 3.6°S of Moon

Sep 01 06:08 Venus 1.4°S of Beehive
    04 18:41 Moon at Descending Node
    05 00 Mercury 3.2° of Mars
    05 04 Neptune at Opposition
    06 07:03 FULL MOON
    10 05:30 Mercury 0.7°S of Regulus
    10 21:44 Jupiter 2.9°N of Spica
    12 10 Mercury at Greatest Elong: 17.9°W
    12 12:09 Aldebaran 0.4°S of Moon
    13 06:25 LAST QUARTER MOON
    13 16:04 Moon at Perigee: 369856 km
    15 12 Mercury at Perihelion
    16 14:50 Beehive 3.1°N of Moon
    16 18 Mercury 0.1° of Mars
    17 18:28 Moon at Ascending Node
    18 00:56 Venus 0.5°N of Moon: Occn.
    18 04:32 Regulus 0.1°S of Moon
    18 23:22 Mercury 0.0°N of Moon: Occn.
    19 21:30 Venus 0.4°N of Regulus
    20 05:30 NEW MOON
    22 07:51 Jupiter 3.7°S of Moon
    22 20:02 Autumnal Equinox
    27 00:09 Saturn 3.5°S of Moon
    27 06:49 Moon at Apogee: 404342 km
    28 02:54 FIRST QUARTER MOON 

Oct 02 02:05 Moon at Descending Node
    03 09 Venus at Perihelion
    05 18:40 FULL MOON
    08 00 Mars at Aphelion
    08 21 Mercury at Superior Conjunction
    09 05:51 Moon at Perigee: 366858 km
    09 18:05 Aldebaran 0.6°S of Moon
    12 12:25 LAST QUARTER MOON
    13 20:29 Beehive 3.0°N of Moon
    14 22:10 Moon at Ascending Node
    15 10:54 Regulus 0.2°S of Moon
    17 10:04 Mars 1.8°S of Moon
    18 00:21 Venus 2.0°S of Moon
    19 17 Uranus at Opposition
    19 19:12 NEW MOON
    21 11 Orionid Meteor Shower
    24 11:54 Saturn 3.3°S of Moon
    25 02:25 Moon at Apogee: 405151 km
    26 18 Jupiter in Conjunction with Sun
    27 22:22 FIRST QUARTER MOON
    29 06:41 Moon at Descending Node 

Nov 02 13:58 Venus 3.3°N of Spica
    04 05:23 FULL MOON
    05 11 S Taurid Meteor Shower
    06 00:09 Moon at Perigee: 361438 km
    06 02:19 Aldebaran 0.8°S of Moon
    10 01:58 Beehive 2.7°N of Moon
    10 20:37 LAST QUARTER MOON
    10 22:40 Moon at Ascending Node
    11 16:07 Regulus 0.4°S of Moon
    12 11 N Taurid Meteor Shower
    12 17:50 Mercury 2.2°N of Antares
    15 00:40 Mars 3.2°S of Moon
    17 17 Leonid Meteor Shower
    18 11:42 NEW MOON
    21 00:34 Saturn 3.0°S of Moon
    21 18:52 Moon at Apogee: 406132 km
    24 00 Mercury at Greatest Elong: 22.0°E
    25 08:22 Moon at Descending Node
    26 17:03 FIRST QUARTER MOON
    29 14:30 Mars 2.9°N of Spica

Dec 03 13:00 Aldebaran 0.8°S of Moon
    03 15:47 FULL MOON
    04 08:42 Moon at Perigee: 357496 km
    07 00 Mercury 1.3° of Saturn
    07 09:30 Beehive 2.5°N of Moon
    08 00:39 Moon at Ascending Node
    08 22:25 Regulus 0.7°S of Moon
    10 07:51 LAST QUARTER MOON
    12 12 Mercury at Perihelion
    13 02 Mercury at Inferior Conjunction
    13 16:27 Mars 4.2°S of Moon
    14 06 Geminid Meteor Shower
    14 14:26 Jupiter 4.2°S of Moon
    18 06:31 NEW MOON
    19 01:27 Moon at Apogee: 406605 km
    21 16:29 Winter Solstice
    21 20 Saturn in Conjunction with Sun
    22 10:04 Moon at Descending Node
    22 15 Ursid Meteor Shower
    26 09:20 FIRST QUARTER MOON
    31 00:25 Aldebaran 0.7°S of Moon

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saber does the stars (vol 2: the index catalog)
http://www.c14isawesome.blogspot.com
tinyurl.com/saberdoesthestars-vol1

all contents within are free use with author/website acknowledgement

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