Sky and Telescope - July 2017 - 75
José J. Chambó
A popular binocular target, the
Coathanger asterism includes the
10 brightest members of Collinder
399. Persian astronomer Al Suﬁ
ﬁrst noted this random group of
stars in AD 964.
DETAILS: GSO 8-inch reﬂector
and Canon EOS 100D DSLR camera
at ISO 1600. Total exposure:
t TULIP IN THE SWAN
The Tulip Nebula, Sh2-101,
glows prettily across 70 light-years
of interstellar space in southwestern Cygnus.
DETAILS: Celestron C14 SchmidtCassegrain telescope and Moravian
Instruments G3-16200 CCD camera with Hα, S II, O III, and RGB
ﬁlters. Total exposure: 12½ hours.
u POL AR DAY
Chang-Jen Wu & Shih-Yi Lin
In Gjesvær, a small ﬁshing village
at the northernmost tip of Norway, the midsummer Sun never
sets, as typiﬁed by this composite
taken over 24 hours.
DETAILS: Canon EOS-1Ds Mark III
DSLR camera at ISO 100 and 8-mm
ﬁsheye lens. Exposures: 1/160 second.
for more of our readers' astrophotos.
FEBRUARY'S ANNUL AR ECLIPSE
César Briceño & Kathy Vivas
Clear skies prevailed over Puerto Chacabuco in
southern Chile during February 26th's annual solar
eclipse. This sequence was recorded over 1¾ hours.
DETAILS: Celestron NexStar 4SE Maksutov-Cassegrain
telescope with Thousand Oaks solar ﬁlter and Canon
EOS Rebel T3i DSLR camera at ISO 200.
Exposures: 1/125 second.
s k y a n d t e l e s c o p e .c o m
* J U LY 2 017