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Evening Planets:

Venus struggles to gain some altitude in the bright WNW twilight sky. The planet doesn’t get that far away from the Sun so Venus appears to have the same altitude for the month. Thus, Venus appears     low on the horizon and sets about 1.5 hours after Sunset. So, this evening showing of Venus continues to be a poor one.

Mars is having the same problems as Venus. The planet is struggling to maintain its altitude in the WNW twilight sky. Each evening, dim Mars is very slowly losing altitude. Also, as the month progresses, Mars gets dimmer. This will be the last month to easily observe Mars during this evening showing.

Morning Planets:

Saturn is the first of the bright morning planets to rise. The planet rises about ½ hour after Midnight on 1 June in the SE. Each morning the planet is slowly rising closer to Midnight. Plus, as the month progresses, Saturn gains a bit of brightness. Around 11 June, Saturn makes the switch and rises just barely before Midnight. Thus, Saturn becomes an evening planet. By the end of June, Saturn is rising about 1 hour before Midnight. Saturn is slowly setting up itself for an evening sky showing in late August.

Jupiter now rises about 1.5 hours after Saturn in the SE. Jupiter will follow Saturn lead and is slowly setting itself up for an Autumn evening sky showing. Jupiter is also rising a bit earlier and is closing in on a Midnight rise. Around the Summer Solstice (20 June), Jupiter just manages to rise just barely before Midnight and also becomes an evening planet. By the end of the month, Jupiter rises about ½ hour before Midnight.

2 June   Last Quarter Moon, Saturn, Jupiter form a rough arc, Dawn

10 June Sunrise Partial Solar Eclipse

11 June Very Thin Crescent Moon lower right of Venus, Dusk

20 June Summer Solstice

22 June Almost Full Moon above bright star Antares, Late Evening

24-25 June Venus and bright stars Castor and Pollux form a rough line, Dusk

28 June, Jupiter, Moon, Saturn form a rough arc, Dawn

Sunrise Partial Solar Eclipse:

On Thursday morning, 10 June, the Sun will rise partially eclipsed.

Do not look directly at the Sun, not even for a moment. Never look at the Sun with the unaided eye or with binoculars, or telescopes that do not have proper, safe solar filters for them. Always use proper, safe solar observations techniques at all times. A momentary view of the Sun without proper, safe solar filters and safe solar observing techniques will cause permanent eye damage or blindness. Never look at the Sun with “ad hoc” homemade solar filters. Remember Solar Observing is Dangerous and one must always use proper, safe, solar filters and safe solar observing techniques. For more information on Solar Observing Safety and Safe Solar Observing Techniques see:

https://eclipse.aas.org/eye-safety

Here is the times table for this Partial Solar Eclipse; 10 June 2021

Sunrise                                                 05:08 am EDST

Maximum Partial Eclipse               05:37 am EDST

End of Eclipse                                     06:37 am EDST

The maximum coverage of the Sun will be about 77%. The Sun will rise partially eclipsed with the horns or cusps of the uncovered portion of the Sun pointing towards the upper left or Eastward side. As the eclipse progresses, the cusps will turn towards the left or eastward more and then disappear as more and more of the Sun will be uncovered.

Unfortunately, the Sun will be extremely low on the horizon at Maximum Partial Eclipse. Most viewers will not have a clear unobstructed horizon to view the Partial Solar Eclipse. Due to the low Sun altitude and the probability of having some obstructions on the horizon; this event is not favorable for our viewing area. However, there will be other eclipses in our viewing area during the next few years which will be favorable.

June’s Favorable Very Thin Crescent Moon

On the evening of Friday 11 June, you will have a chance to see a very thin Crescent Moon. This very thin Crescent Moon will be just to the lower right of the Planet Venus.

Here’s a time table of this event:

Sunset 08:36 pm EDST

Crescent Visible (?) 8:51 pm EDST (Approximately)

Moonset 10:00 pm EDST

The best way to see this thin Crescent Moon is to catch it when its rather high up in the sky. If you wait 15 minutes after Sunset and then try to find Venus in the WNW in binoculars; Venus will help guide you to the Crescent Moon. Look for the extremely thin Crescent Moon just to the lower right of Venus. Both objects should be visible in hand held binoculars at the same time. If you see this Crescent Moon, it is 1.6 days old and only 2.3% illuminated. The horns or cusps of the thin Crescent Moon should be pointing toward Venus.  You will need a low unobstructed WNW horizon to see this pair. A few sharp eye individuals may be able to detect the thin Crescent Moon with the unaided eye. Binoculars will greatly help the rest of us viewers to see the thin Crescent. This very thin Crescent Moon is favorable for our viewing area. This event is the last favorable Moon event for the evening sky for 2021. After June, the evening Moon will slowly move into an unfavorable position for the rest of the year.

Gary T. Nowak

Vermont Astronomical Society