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Thursday, 15 August 2013

SPA ENB NO. 359b

                  The SOCIETY for POPULAR ASTRONOMY

         Electronic News Bulletin No. 359b  2013 August 15

By Robin Scagell, Paul Sutherland and Tony Markham

The brightest nova for many years has flared in the constellation of
Delphinus near its border with Vulpecula. It is on the edge of
naked-eye visibility but easily seen in binoculars.

The exploding star was discovered at magnitude 6.3 by Koichi Itagaki,
of Yamagata, Japan, using a 0.18-metre reflector and unfiltered CCD

An alert from the IAU Central Bureau for Astronomical Telegrams gives
its position as 20h 23m 30.73s +20d 46m 04.1s.

Nothing was visible in the location in frames imaged a day earlier.

Last night, visual observer Patrick Schmeer, of Bischmisheim,
Germany, recorded it at magnitude 6.0 using 20x80 binoculars.

An image taken by the discoverer can be found at:

Our chart shows the bright stars of Delphinus to help you star-hop to
the nova. Comparison star magnitudes for the chart are: A=4.8, B=5.7,
C=6.2, D=6.4, E=6.6, F=6.9, G=7.9, H=8.0

The nova may be near its peak brightness. But no one can predict for
sure how its behaviour will develop. Observations should be carried out
with an open mind.

Observers with long memories will recall that Delphinus was also
the location of another unrelated nova which flared in 1967.

Later designated HR Del, the nova was extremely unusual in remaining
around its peak brightness for several months and even becoming
noticeably brighter some weeks after its initial discovery by the
legendary British observer George Alcock.

SPA members received early notification of the event by an email
Newsletter which contained a finder chart, comparison stars and the
discovery photo.  These Newsletters are available exclusively to SPA
members as a benefit of their membership.

Bulletin compiled by Clive Down

(c) 2013 the Society for Popular Astronomy

Good Clear Skies
Colin James Watling
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
Real Astronomer and head of the Comet section for LYRA (Lowestoft and Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
Information -- And More Info

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