What's New --History of Renewal--



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I've added and updated the materials below.
(Individual renewal dates are written in accordance with Japan Standard Time, JST)


Nov 19, 2017
An image of Comet 2017O1 ASASSN on Nov 11 is added in the album of Comet & Meteors.


Oct 20, 2017
A pages of Brightness distribution of the white-light corona is added in the album of Eclipse.



Oct 9, 2017
5 images below are added in Full-HD compatible Wallpapers
Fine structure of solar corona, Solar chromosphere prominences, The diamond ring, Highlight of the total solar eclipse & Progress of total solar eclipse & shadow cone


Oct 2, 2017
An image of Comet 2017O1 ASASSN on Sep 30 is added in the album of Comet & Meteors.


Sep 16, 2017
A pages of Time-lapse movie of all progress of Total Solar Eclipse is added in the album of Eclipse.



Sep 13, 2017
A pages of Baily's beads, chromosphere & prominences during the totality is added in the album of Eclipse.



Sep 9, 2017
3 pages of Movement of the eclipsed sun, Snapshot during observation of the total solar eclipse & Shadow-band in the total solar eclipse are added in the album of Eclipse.



Sep 6, 2017
A pages of Movement of the shadow cone during the totality is added in the album of Eclipse.



Sep 3, 2017
A pages of Change of sky brightness during Total Solar Eclipse is added in the album of Eclipse.



Sep 2, 2017
A pages of Real-time movie of the climax of totality is added in the album of Eclipse.



Aug 31, 2017
A pages of Streamline structure of the corona is added in the album of Eclipse.



Aug 27, 2017
3 pages of Reviw of the total solar eclipse on Aug 21, 2017 in U.S., Progress of the total solor eclipse, and Change of the Diamond Ring are added in the album of Eclipse.



Aug 18, 2017
An image of Nebulae in northern region of Antares is replaced in the album of Deepsky in Summer.



Aug 12, 2017
2 images of Around Sh2-24, Sh2-33 & M5 are replaced in the album of Deepsky in Summer.

An image of Corona Austrina is replaced in the album of Constellations.


Jun 24, 2017
An image of NGC4365 is added in the album of Deepsky in Spring.

An image of Sh2-71 is added, 2 images of Veil Nebula & Diffused Nebula around eta Cyg are replaced in the album of Deepsky in Summer.


May 24, 2017
6 images of M59 & M60, M88, M90, NGC4567 & NGC4568, NGC5416 Group, Quasar 3C273 are replaced in the album of Deepsky in Spring.



May 21, 2017
3 images of Comet Tuttle-Giacobini-Kresak on May 20, 2017, Comet 2015V2 Johnson on May 20, 2017 & Comet 2015ER61 PanSTARRS on early morning of May 21, 2017 are added in the album of Comets&Meteors.


May 14, 2017
3 pages of "The Markarian's chain", "Wide-field around IC1805 & IC1848", and "The Pleiades & Taurus molecular cloud" are added, a page of "Around IC1318" is replaced in Full-HD compatible wallpapers


May 7, 2017
4 images of NGC3718, NGC3729 & HCG56, NGC4111, NGC4565 & M104 are replaced in the album of Deepsky in Spring

An image of NGC6384 is added, and 2 images of Hoag's Object & NGC5897 are replaced in the album of Deepsky in Summer.


May 3, 2017
3 images of Comet Tuttle-Giacobini-Kresak on Apr 28, 2017, Comet 2015V2 Johnson on Apr 28, 2017 & Comet 2015ER61 PanSTARRS on early morning of Apr 29, 2017 are added in the album of Comets&Meteors.


May 1, 2017
A page of Jupiter images in season of 2017 is added in the album of Moon & Planets.


Apr 16, 2017
2 images of Comet Tuttle-Giacobini-Kresak on Apr 15 & Comet 2015V2 Johnson on Apr 15 are added in the album of Comets & Meteors.


Mar 19, 2017
An image of NGC2537, IC2233 is added in the album of Deepsky in Spring.

3 images of IC1459, NGC131, NGC134 and Around Sh2-163 are added in the album of Deepsky in Autumn.


Mar 11, 2017
3 images of NGC908, NGC7541, NGC7537 & UA444 are replaced in the album of Deepsky in Autumn.

3 images of Hind's variable nebula (NGC1554), NGC1187 & NGC1365 are replaced in the album of Deepsky in Winter.


Mar 11, 2017
2 images of Comet Honda-Mrkos-Pajdusakova on Mar 4, 2017 & Comet Tuttle-Giacobini-Kresak on Mar 4 are added in the album of Comets & Meteors.


Feb 20, 2017
2 images of Comet Honda-Mrkos-Pajdusakova on Feb 19, 2017 & Comet 2015V2 Johnson on Feb 3 are added in the album of Comets & Meteors.


Feb 16, 2017
8 images below are replaced in the album of Deepsky in Spring.
M51, M83, NGC5128, NGC4214, NGC4051, The Antennae, Close-up of M65, M66, Close-up of NGC3628


Feb 10, 2017
2 images of Molecular clouds around M45 & The Orion Association are replaced in the album of Deepsky in Autumn.


Feb 6, 2017
An image of Comet Honda-Mrkos-Pajdusakova on early morning of Feb 5, 2017 is added in the album of Comets & Meteors.


Jan 29, 2017
4 images of IC1805, IC1848, Sh2-204, and Sh2-205 are replaced in the album of Deepsky in Autumn.


Jan 14, 2017
2 images of NGC578 & NGC864 are added, 5 images of NGC210, NGC507 Group, IC10, M103, NGC7640 are replaced in the album of Deepsky in Autumn.

2 images of NGC1395 & NGC1569 are added, an image of IC356 is replaced in the album of Deepsky in Winter.


Jan 3, 2017
2 images of Comet Honda-Mrkos-Pajdusakova on Dec 30, 2016 & Comet 2016U1 NEOWISE on early morning of Dec 31, 2016 are added in the album of Comets & Meteors.


Dec 29, 2016
2 images of Comet Honda-Mrkos-Pajdusakova & Comet 2015V2 Johnson on Dec 24 are added in the album of Comets & Meteors.


Dec 17, 2016
2 images of Around IC348 & Wide-field around IC1805 & IC1848 are replaced in the album of Deepsky in Autumn.


Dec 14, 2016
An image of Around vdB152, LDN1235 is added in the album of Deepsky in Autumn.


Nov 27, 2016
An image of Close-up of Cocoon Nebula is replaced in the album of Deepsky in Summer.

4 images of Around IC167, NGC691, Around NGC7626(Pegasus I Cluster), IC1613, Around NGC663, M103 are replaced in the album of Deepsky in Autumn.

An image of Fornax Cluster is replaced in the album of Deepsky in Winter.


Nov 20, 2016
A page of Aldebaran occultation on Nov 16, 2016 is added in the album of Eclipse.


Nov 19, 2016
An image of Molecular Cloud around M81,M82 is replaced in the album of Deepsky in Spring.

An image of NGC1342 is replaced in the album of Deepsky in Autumn.

2 images of vdB62 & California Nebula, Pleiades & Hyades are replaced in the album of Deepsky in Winter.


Nov 2, 2016
An image of Diffused nebulae in Cygnus is replaced in the album of Deepsky in Summer.

An image of Wide-field around Orion-Eridanus super bubble is added in the album of Deepsky in Winter.


Oct 22, 2016
An images of Wide field around NGC7023(Iris Nebula) is replaced in the album of Deep Sky in Autumn.


Oct 7, 2016
2 images of NGC7662(Blue snowball) & Close-up of IC1396 (Elephant trunk nebula) are replaced in the album of Deep Sky in Autumn.


Sep 4, 2016
An image of Molecular cloud around Polaris is replaced in the album of Deepsky in Spring.

An image of Nebulosities around western Vulpecula is added in the album of Deepsky in Summer.

An image of Around Pegasus Molecular Cloud is added in the album of Deepsky in Autumn.


Aug 21, 2016
2 images of IC1396 to Sh2-129 and NGC7822, Ced214 are replaced in the album of Deepsky in Autumn.


Aug 15, 2016
A review page of Perseids meteor shower 2016 added.


Jul 30, 2016
An image of Wide field around Veil Nebula is added, an image of IC4592 is replaced in the album of Deepsky in summer.


Jul 17, 2016
Pages of spectral profile of Omega nebula(M17) & Dumb-bell nebula(M27) are added in the album of Deepsky in summer.

An image of Around IC4628, H12 is added in the album of Deepsky in summer.


Jun 26, 2016
3 images of "The highlight of Milky Way in summer", "Celestial bodies around tail of Scorpius", and "Milky Way in Sagittarius to Scorpius" are added in Full-HD compatible Wallpapers.


Jun 17, 2016
2 images of Wide field around Lagoon Nebula & Mars & Nebulosities around head of Scorpius are added in the album of Deepsky in Summer.


Jun 4, 2016
A page of Comet 2013X1 PanSTARRS on early morning of Jun 4, 2016 is added in the album of Comet&Meteors.



May 21, 2016
3 time-lapse movies below are added in the album of Stellar Scenes.
Diurnal motion of Moonlit Orion, Rising summer's Milky Way, Diurnal motion of Scorpius between clouds

A page of Observed Mars images in season of 2016 is added in the album of Moon & Planets.


May 12, 2016
2 images of Comet 2014S2 PanSTARRS on May 5, 2016 & Comet 2013X1 PanSTARRS on early morning of May 8, 2016 are added in the album of Comet&Meteors.



May 2, 2016
2 images of Comet 252P LINEAR on May 1, 2016 is added in the album of Comets & Meteors.


Apr 24, 2016
A page of Observed Jupiter images in season of 2016 is added.


Apr 11, 2016
2 images of Comet 252P LINEAR on Apr 9, 2016 & Comet 2014S2 PanSTARRS on Apr 9, 2016 are added in the album of Comets & Meteors.


Mar 27, 2016
3 images of NGC4157, NGC4244 & NGC2992, NGC2993 are replaced in the album of Deepsky in Spring.

An image of Abell 85 is replaced in the album of Deepsky in Autumn.

2 images of Sh2-278 & NGC2301 are replaced in the album of Deepsky in Winter.


Mar 20, 2016
An image of Nebulosities around the Hyades is added in the album of Deepsky in Winter.


Mar 5, 2016
An image of Around NGC4065 is added,
4 images of M108, Around NGC2805, NGC4236 & NGC4449 are replaced in the album of Deepsky in Spring.

An image of NGC2217 is added, and an image of Sh2-239 is replaced in the album of Deepsky in Winter.


Feb 9, 2016
2 images of Comet 2013UC10 Catalina on Feb 11, 2016 & Comet 2013X1 PanSTARRS on Feb 11, 2016 are added in the album of Comets & Meteors.



Feb 9, 2016
An image of Comet 2013UC10 Catalina on Feb 7, 2016 is added in the album of Comets & Meteors.



Feb 7, 2016
An image of Comet 2014S2 PanStarrs on early morning of Jan 16, 2016 is added in the album of Comets & Meteors.

4 images of NGC672, IC1727, NGC1023, IC239, NGC1055, NGC1087, NGC1090 are replaced in the album of Deepsky in Autumn.

An image of Close-up of Cone Nebula is added in the album of Deepsky in Winter.


Jan 30, 2016
An image of Nebulosities between Perseus & Camelopardalis is addced in the album of Deepsky in Autumn.

2 images of Around Sh2-216, Sh2-221 and Around Taurus molecular cloud are replaced in the album of Deepsky in winter.

A page of Spectrum of Comet 2013UC10 Catalina on early morning of Jan 9, 2016 is added in the album of Comets & Meteors.


Jan 24, 2016
An image of Around IC348, NGC1985 & NGC1333 is replaced in the album of Deepsky in Autumn.

An image of Barnard's Loop is replaced, an image of Sh2-245 (Orion-Eridanus superbubble) is added in the album of Deepsky in winter.


Jan 21, 2016
A page of Great approach of Venus & Saturn (Jan 9, 2016) is added in the album of Moon & Planets.


Jan 18, 2016
Images of Comet 2013UC10 Catalina on early morning of Jan 16&17, 2016 are added in the album of Comets & Meteors.


Jan 15, 2016
2 images of Comet 2014S2 PanSTARRS on Jan 3, 2016 & Comet 2013X1 PanSTARRS on Jan 3 & 9, 2016 are added in the album of Comets & Meteors.


Jan 11, 2016
Images of Comet 2013UC10 Catalina on early morning of Jan 9 to 11, 2016 are added in the album of Comets & Meteors.


Jan 7, 2016
Images of Comet 2013UC10 Catalina on early morning of Jan 4&5, 2016 are added in the album of Comets & Meteors.


Jan 2, 2016
An image of Milky Way in Cygnus to Perseus is replaced in the album of Milky Way.



Dec 31, 2015
2 images of Comet 2014S2 PanSTARRS on Dec 30, 2015 & Comet 2013X1 PanSTARRS on Dec 30, 2015 are added in the album of Comets & Meteors.


Dec 28, 2015
An image of NGC7479 is replaced in the album of Deepsky in Autumn.

3 images of NGC1360, NGC1232 & NGC1851 are replaced in the album of Deepsky in Winter.


Dec 23, 2015
Images of Comet 2013UC10 Catalina on early morning of Dec 20, 2015 are added in the album of Comets & Meteors.


Dec 13, 2015
Images of Comet 2013UC10 Catalina on early morning of Dec 13, 2015 are added in the album of Comets & Meteors.


Dec 12, 2015
2 images of Comet 2014S2 PanSTARRS on Dec 5, 2015 & Comet 2013X1 PanSTARRS on Dec 5, 2015 are added in the album of Comets & Meteors.


Dec 11, 2015
Images of Comet 2013UC10 Catalina on early morning of Dec 8&9, 2015 are added in the album of Comets & Meteors.


Dec 6, 2015
Images of Comet 2013UC10 Catalina on early morning of Dec 5&6, 2015 are added in the album of Comets & Meteors.


Dec 4, 2015
An image of Sh2-290 is replaced in the album of Deepsky in Spring.

Images of vdB16 is added, NGC40 is replaced in the album of Deepsky in Autumn.

An image of Abell 24 is added in the album of Deepsky in Winter.


Nov 18, 2015
2 images of Comet 2014S2 PanSTARRS on Nov 15, 2015 & Comet 2013X1 PanSTARRS on Nov 15, 2015 are added in the album of Comets & Meteors.


Nov 8, 2015
2 images of Sh2-176 & NGC7314 are added in the album of Deepsky in Autumn.

2 images of Sh2-239 & NGC1253 are added in the album of Deepsky in Winter.


Oct 31, 2015
3 images of NGC383 Group, Arp 295 & Sh2-204 are replaced in the album of Deepsky in Autumn.


Oct 28, 2015
3 pages of Serpens & Ophiuchus, Piscis Austrinus & Microscopium are replaced in the album of Constellations.



Oct 25, 2015
An image of Nebulosities around the California Nebula is added in the album of Deepsky in Autumn.

An image of Molecular clouds around M45 is replaced in the album of Deepsky in Winter.


Oct 24, 2015
3 images of M34, NGC7789 & NGC55 are replaced in the album of Deepsky in Autumn.


Sep 27, 2015
An image of Veil Nebula is replaced in the album of Deepsky in Summer.

An image of Dawn Moon, Pleiades & Hyades is added in the album of Stellar Scenes.


Aug 22, 2015
A page of Comet 2014Q2 Lovejoy on Aug 15 is added in the album of Comets & Meteors.


Aug 8, 2015
An image of Sh2-72 is added, 2 images of Close-up of NGC6960 and Around M24 are replaced in the album of Deepsky in Summer.

An image of Sh2-126 is replaced in the album of Deepsky in Autumn.

An image of Milky Way in Lacerta to Cepheus is replaced in the album of Milky Way.


Aug 4, 2015
An image of Wide field around North American Nebula is replaced in the album of Deepsky Object in Summer.


Jul 4, 2015
An image of Dark lanes around the Great Triangle in summer is added, an image of Southern Sagittarius to Scorpius is replaced in the album of Milky Way.


Jun 21, 2015
An image of IC1318 is replaced in the album of Deepsky Object in Summer.


Jun 7, 2015
A page of Saturn images in season of 2015 is added in the album of Moon & Planets.



May 31, 2015
A movie fo Nightglow & the summer's Milky Way is added in the album of Stellar Scenes.


May 4, 2015
4 images below are added in the album of Deepsky in Spring.
NGC2872, NGC2874, NGC3981, NGC4527, NGC5585

An image of NGC6140 is added in the album of Deepsky in Summer.

An image of vdB80 is added in the album of Deepsky in Winter.


May 2, 2015
A page of Quasar 3C48 is added in the album of Deepsky in Autumn.


Apr 28, 2015
2 images of NGC3642 & Sh2-290 are added in the album of Deepsky in Spring.

3 images of Sh2-253, IC466 & LBN1023 are added in the album of Deepsky in Winter.


Apr 18, 2015
A page of Jupiter images in season of 2014-2015 is added in the album of Moon & Planets.

An image of The Praesepe(M44) is replaced in the album og Deepsky in Spring.


Mar 18, 2015
A page of Comet 2014Q2 Lovejoy on Mar 14 is added in the album of Comets & Meteors.


Feb 16, 2015
A page of Comet 2014Q2 Lovejoy on Feb 14 is added in the album of Comets & Meteors.


Feb 12, 2015
A page of Comet 2014Q2 Lovejoy on Feb 11 is added in the album of Comets & Meteors.


Feb 11, 2015
7 images below are replaced in the album of Deepsky in Spring.
NGC5866(M102), NGC2841, NGC3945, NGC2964, NGC4536, M3, M68

2 images of NGC925 & NGC1528, NGC1491 are replaced in the album of Deepsky in Autumn.

An image of NGC2022 is replaced in the album of Deepsky in Winter.


Jan 31, 2015
A page of Comet 2014Q2 Lovejoy on Jan 23 is added in the album of Comets & Meteors.


Jan 26, 2015
A page of Comet 2014Q2 Lovejoy on Jan 24 is added in the album of Comets & Meteors.


Jan 21, 2015
2 pages of Comet 2014Q2 Lovejoy on Jan 9 & Comet 2014Q2 Lovejoy on Jan 11 are added in the album of Comets & Meteors.


Jan 18, 2015
A page of Comet 2014Q2 Lovejoy on Jan 17 is added in the album of Comets & Meteors.


Jan 12, 2015
An uimage of M48 is replaced in the album of Deepsky in Spring.

9 images below are replaced in the album of Deepsky in Winter.
NGC2354, NGC1647, NGC1746, NGC2451, NGC2477, NGC2420, NGC2281, Around NGC2182, Medusa Nebula, Gum Nebula, M78 & Barnard's Loop


Jan 10, 2015
A page of Comet 2014Q2 Lovejoy on Jan 10 is added in the album of Comets & Meteors.


Jan 6, 2015
A time-lapse movie of the Geminids Meteor Shower 2014 is added in the album of Stellar Scenes.


Jan 3, 2015
A page of Spectrum of comet 2014Q2 Lovejoy on Dec 29 is added in the album of Comets & Meteors.


⇒  To the renewal log from 2012 to 2014
⇒  To the renewal log from 2009 to 2011
⇒  To the renewal log from 2006 to 2008
⇒  To the renewal log from 2003 to 2005
⇒  To the renewal log from 2000 to 2002
⇒  To the renewal log from 1997 to 1999


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