Articles by Josef Chlachula

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Astronomy League Carbon stars list

February 17, 2023 Josef Chlachula Comments Off on Astronomy League Carbon stars list
Table based on AstroLeague.org observing program Carbon Stars file CarbonStarList3.pdf. # Name RA DEC Mag. Per Con Type Cat HIP Desig HD Desig 1 WZ Cas 00 01 15 +60 21 19 6.9-11.0 186 Cas C9(N1) SAO 21002 HIP 99 HD 224855 2 SU And 00 04 36 +43 33 04 8.0-8.5 Irr. And C6(Nb) GSC 2793:243 HIP 363 HD […]
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Astronomy League Double stars list

February 17, 2023 Josef Chlachula Comments Off on Astronomy League Double stars list
Table based on AstroLeague.org observing program Double Stars file DS-MasterObjectList2021.pdf # Name RA DEC Mag Sep Pos. Angle Last WDS measure 1 Eta Cassiopeiae 00h 49m.1 +57° 49′ 3.5, 7.4 13.4″ 326° 2019 2 65 Piscium 00h 49m.9 +27° 43′ 6.3, 6.3 4.4″ 115° 2020 3 Psi 1 Piscium 01h 05m.6 +21° 28′ 5.3, 5.5 29.8″ 159° 2018 4 Zeta Piscium 01h 13m.7 +07° 35′ 5.2, 6.3 22.8″ […]
40 Eridani
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40 Eridani B

October 22, 2022 Josef Chlachula Comments Off on 40 Eridani B
Robert Fealey published on October 21st on forum post including beautiful picture above: https://rochesterskies.org/forum/topic/observing-tonight/page/167/#post-13989 The December Sky and Telescope mag motivated me to get out early this morning and see if I could observe and photograph “The First White Dwarf” star in 40 Eridani; the latter is a triple star with the B component a white dwarf. In the attached […]
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Sirius B

September 6, 2022 Josef Chlachula Comments Off on Sirius B
On the 7th annual Star_BQ Sunday morning October 26, 2014 Dean Johnson had an idea to look at Sirius B. At first I didn’t understand what Dean was talking about, why should we look at bright Sirius. I realized later that he meant Sirius B, a weak companion of the brightest star in the sky, which only a few people […]
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Carbon star V Aql

September 4, 2022 Josef Chlachula Comments Off on Carbon star V Aql
V Aquilae (V Aql) is a carbon star and semiregular variable star in the constellation Aquila. It has an apparent magnitude which varies between 6.6 and 8.4 and is located around 1,300 light years away. Star has significant red color, which is more highlighted in medium size and bigger telescopes, temperature 2800K. It can be find even by binocular under […]
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Sky moments

December 10, 2021 Josef Chlachula Comments Off on Sky moments
On December 6th 2021 evening there was a beautiful conjunction of the 3.1 days old Moon and Venus in Sagittarius above South West horizon. There is a star h2 Sgr 4.55 mag between Moon and Venus. Moon was 10 % illuminated, Venus 23 %. Canon Rebel T6, 1s, ISO 1600, 50mm, f2.8
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Andromeda and Triangle

November 7, 2021 Josef Chlachula Comments Off on Andromeda and Triangle
There are two galaxies on northern sky visible by naked eye: Andromeda M31 and and Triangle M33. Related links: 1:β Andromedae AKA Mirach region, 2:M31 AND M33 AS SEEN FROM CENTRAL PA, 3:GAUGING LIGHT POLLUTION: THE BORTLE DARK-SKY SCALE, 4:THE EYES HAVE IT — DEEP-SKY OBSERVING WITHOUT EQUIPMENT, 5:DEEP-SKY OBSERVING WITHOUT EQUIPMENT, PART II — THE WINTER SKY, 6:HOW DARK […]
Frontenac
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Frontenac 11/6

November 7, 2021 Josef Chlachula Comments Off on Frontenac 11/6
Visitors of the Frontenac State Park had on Saturday November 6 opportunity to see celestial object through telescopes. There were three stations with telescopes on parking loop in short distance from beautiful overlook. People could watch sliver only four days old Moon above southwest horizon not so far from brilliant Venus. On South were shining Jupiter and Saturn. And of […]
N Cas 2021
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Nova Cas 2021

March 19, 2021 Josef Chlachula Comments Off on Nova Cas 2021
A bright nova ignited in the constellation Cassiopeia, which is also available in the binoculars. The current brightness is around 7.8 mag (March 19, 2021) and still is getting brighter. Nova was given the designation Nova Cas 2021. It can be found close to the M52. The flare of the nova discovered Japanese Yuji Nakamura March 18, 2021 as an […]
Solstice sunrise above Root River Park
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Solstice December 21, 2020 sunrise

December 21, 2020 Josef Chlachula Comments Off on Solstice December 21, 2020 sunrise
On Monday December 21, 2020 at 10:02 UTC (4:02 AM CST) Sun has reached the southernmost point in the Earth sky. Picture shows sunrise above Root River Park, even though sky was mostly cloudy. There was a surprise on the opposite side of the horizon in form of Sun dog, something rare to see.