Astronomical Diary
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Last Quarter New Moon First Quarter Full Moon
Nov 12
12:40 AM
Nov 30
8:19 AM
Nov 8
12:02 AM
Nov 15
10:54 PM
Nov 23
1:39 PM
Current Condition X-ray Solar Flares

Speed: 362.4 km/sec
Density: 6.0 protons/cm3
More Data: ACE, DSCOVR

Explanation | More Data
Updated: Oct 26 at 2257 UT

***The sun is blank-- no sunspots.

Credit: Solar Dynamics Observatory(SDO)/Helioseismic
and Magnetic Imager (HMI).
Daily Sun: 25 Oct 2018
6-hr max: A1 1749 UT Oct 26
24-hr: A1 0945 UT Oct 26
Explanation | More Data

Updated: Oct 26 at 2200 UT
Time (PST) of rise and set of some planets at 10-day interval
Rise Set Rise Set Rise Set Rise Set Rise Set
Nov 7 7:38 AM 6:49 PM 4:40 AM 4:13 PM 12:55 PM *12:09 AM 7:01 AM 6:22 PM 9:37 PM 8:51 AM
Nov 17 7:24 AM 6:33 PM 3:54 AM 3:34 PM 12:36 PM *12:15 AM 6:31 AM 5:51 PM 9:02 PM 8:15 PM
Nov 27 6:09 AM 5:25 PM 3:24 AM 3:07 PM 12:17 PM *12:01 AM 6:01 AM 5:21 PM 8:27 PM 7:41 PM

* = following day
Astronomical Events November 2018
Meteor Shower

One of the most prolific meteor showers is the Leonids. Its radiant is in the constellation Leo which is located in the eastern section of the sky at dawn as shown in Figures 2 & 2a.

Unlike the previous years where it produced hundreds of meteors, astronomers and experts do not predict many meteors this year.

A zenithal hourly rate (ZHR) of about 15 meteors might occur in the late hours of November 21 until dawn of the following day.

The Leonids Meteor Shower is created by bits of debris left behind by the repeat passages through the inner solar system of comet 55P/Tempel-Tuttle.
Figure 2
(click to view image)
Figure 2a
(click to view image)
Stars and Constellations
During the nights of November, the splendid W formation of stars known as the constellation of Cassiopeia, the wife of King Cepheus and the mother of Andromeda in the Greek mythology, the constellations of Draco, the Dragon, Ursa Minor, the Little Bear, including the constellations of Perseus and Camelopardalis lies in the northern horizon as shown in Figures 1 & 1a. In addition, the Milky Way runs from the constellation Cygnus, the Swan in the west, to the constellation Gemini, the Twin in the east. The large figures of the constellations of Pisces, the Fish and Cetus, the Sea Monster spread across the equatorial region of the sky.
Figure 1
(click to view image)
Figure 1a
(click to view image)
Planets Whereabout
On 01 November at 5:30 AM, Venus will be found at about 5 degrees above the east southeastern horizon shining brightly at magnitude -4.22. It will gradually climb higher as days pass and will gain its highest altitude on November 30, standing at around 31 degrees above the horizon. The planet will lie among the background stars of the constellation Virgo, the Virgin.

On the same date at 6:00 PM, Planets Jupiter, Mercury and Saturn can be observed at altitudes of about 8, 9 and 38 degrees in the west southwestern horizon and can be found among the background stars of the constellations Libra, the Scale, Scorpius, the Scorpion and Sagittarius, the Archer, shining at magnitudes -1.74, +0.24 and +0.60, respectively. The largest planet in the solar system, Jupiter and the innermost planet, Mercury, gradually dip down the horizon as days pass, and will be out for observation on the 14th and 25th of the month and onward. The Ringed-planet, Saturn will be visible for observation throughout the early evening hours of the month. Its system holds more than 60 satellites or moons, of which seven (7) glow brightly enough to show through moderate-aperture telescopes. Saturn’s Titan, the largest and brightest satellite, which shines at magnitude +8.4 can be easily seen through any optical instrument. It orbits Saturn once every 16 days.

Also, Mars, Neptune and Uranus will be located at the east southeastern horizon among the background stars of the constellations Capricornus, the Sea-Goat, Aquarius, the Water-Bearer and Aries the Ram with magnitudes of -0.60, +7.80 and +5.7, respectively. Observing Neptune and Uranus will require a binocular or a telescope and a starmap under dark and clear sky condition.

Figure 3 shows how to compare apparent magnitudes of celestial bodies such as planets and stars.

Figure 3
(click to view image)

November 2018
1 Moon at perigee (nearest distance to Earth = 370,200 km) 4:00 AM
6 Mercury greatest elongation East (23°) 11:00 PM
9 Mercury 7° South of Moon 6:00 PM
11 Saturn 3° South of Moon 7:00 PM
15 Moon at apogee (farthest distance to Earth = 404,340 km) 12:00 AM
18 Juno at opposition 6:00 AM
21 Uranus 5° North of Moon 2:00 AM
26 Moon at perigee (nearest distance to Earth = 366,622 km) 8:00 PM