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Offline Acheron

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« Odgovori #300 u: 06.11.2014. u 22:02:11 sati »
Čini se da je to to od supernove u M61, zadnje mjerenje govori da je mag 13.9. Čekamo Mjesec da se makne....
http://www.cbat.eps.harvard.edu/unconf/followups/J12215757+0428185.html

Offline Ivan H

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« Odgovori #301 u: 06.01.2015. u 19:45:44 sati »
Zanima me da li se netko od forumaša bavi vizualnim promatranjem varijabilnih zvijezda i izvještavanjem u AAVSO.
GSO Dobson 250/1250; SW ST120/600; SW ST80/400
ES 14mm 100°, TS 5mm 110°, 30mm 2" Erfle, Gold Line 20mm, Gold Line 9mm, SW PLanetary 4mm
Big Barlow 2x ED 2", OIII 2"
www.aavso.org

Offline Acheron

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« Odgovori #302 u: 06.01.2015. u 20:29:23 sati »
Ponekad šaljem izvještaje u AAVSO kada je iz naših krajeva vidljiva kakva svjetlija nova ili supernova.

Offline Krun0

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« Odgovori #303 u: 08.01.2015. u 11:57:28 sati »
i ja tu i tamo......ali fotografski ne vizualno....
....btw...ako nas ima vise mozemo napraviti neki zajednicki projekt neke zanimljive zvijezde.....
Deus non est !
Testimonia sunt omnibus per circuitum nostrum, si vis videre.

Offline Ivan H

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« Odgovori #304 u: 09.01.2015. u 15:38:48 sati »
Ja sam uvijek zainteresiran za neki zajednički projekt. AAVSO ih čak i za vizualno promatranje nudi sasvim dovoljno.

Budući da sam trenutno ponosni vlasnik samo jednog dalekozora, onda se držim njihovog binocular programa:

http://www.aavso.org/aavso-binocular-program

Sadrži 153 zvijezde koje se mogu pratiti, a stvarno bi se našle neke jako zanimljive. Kad nabavim teleskop, onda ću moći proširiti program.
GSO Dobson 250/1250; SW ST120/600; SW ST80/400
ES 14mm 100°, TS 5mm 110°, 30mm 2" Erfle, Gold Line 20mm, Gold Line 9mm, SW PLanetary 4mm
Big Barlow 2x ED 2", OIII 2"
www.aavso.org

Offline Vragoder

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Offline bojan

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« Odgovori #306 u: 02.05.2018. u 07:14:10 sati »
Nova u Perzeju, magnitude 6.2
http://www.skyandtelescope.com/astronomy-news/observing-news/dwarf-nova-v392-persei-goes-nova-now-binocular-bright/
Yep..

AAVSO Alert Notice 633
Nova outburst of V392 Per = TCP J04432130+4721280

April 30, 2018:

Event: Nova in Perseus - V392 Per = TCP J04432130+4721280

Discovered by: Yuji Nakamura (Kameyama, Mie, Japan; via CBET 4515)

Discovery magnitude: unfiltered CCD magnitude 6.2 (using a 135mm f4.0 lens; via CBET 4515)

Discovery date: 2018 April 29.474 UT (via CBET 4515)

Coordinates (2000.0): R.A. 04 43 21.38  Decl. +47 21 25.9  (from VSX)
 
Spectra: Hiroyuki Naito (Nayoro Observatory) and Tatsuharu Ono (Hokkaido University) report (via CBET 4515) that a low-dispersion spectrum of this object [V392 Per] was obtained on 2018 Apr. 29.58 UT using the 1.6-m Pirka telescope (+ NaCS) at the Nayoro Observatory. They report that "the spectrum shows some unidentified absorption lines on a very red continuum, which may indicate high reddening." Their spectrum can be viewed at URL https://www.nayoro-obs.jp/pirka/nacs/V392Per_20180429.png

Robin Leadbeater (Wigton, Cumbria, UK) provides a R~500 spectrum taken on 2018 Apr. 29.894 UT at:
https://www.aavso.org/sites/default/files/v392per_20180429_894_Leadbeater.png

Spectroscopy indicating that V2392 Per is undergoing a nova outburst was obtained by Wagner et al. (ATel #11588) on 2018 April 30.116 UT with the 2.4 m Hiltner telescope (+OSMOS) of the MDM Observatory on Kitt Peak. They report that "the spectrum is reminiscent of classical novae early in their outburst and prior to maximum light..."

Observing recommendations: Observations of all types (visual, CCD, DSLR, PEP, spectroscopy) and multiple bands (particularly B, V, I) as instrumentation permits are strongly encouraged as this bright nova evolves.

Observations reported to the AAVSO:
2017 Sep. 07.0674 UT, 16.65 CV +/-0.076 (E. Muyllaert, Oostende, Belgium);
Oct. 19.1389, 16.48 CV +/-0.030 (Muyllaert);
2018 Jan. 04.1153, <16.5 CV (Muyllaert);
Jan. 14.16786, 17.725 B  +/-0.141 (G. Stone, Auberry, CA);
Jan. 19.9181, <16.5 V (Muyllaert);
Mar. 08.0021, <16.5 CV (Muyllaert);
Apr. 21.4627, <12.5 unfiltered CCD (Y. Nakamura, Kameyama, Mie, Japan; via CBET 4515);
28.9687, 7.0 unfiltered DSLR (A. Uhrin, Randaberg, Norway, via CBET 4515);
29.0007, 7.0 unfiltered DSLR (Uhrin, via CBET 4515);
29.80600, 6.340 V +/-0.002  (T. Tordai, Budapest, Hungary);
29.81993, 6.35 CV +/-0.02 (P. Dubovsky, Kononica, Slovakia);
29.82058, 4.75 CI +/-0.01 (Dubovsky);
29.82058, 7.16 CB +/-0.04 (Dubovsky);
29.82111, -3.49 CR +/-0.03 (Dubovsky);
29.83194, 6.21 (M. Deconinck, Artignosc sur Verdon, France);
29.8507, 6.50 (I. Bryukhanov, Minsk, Belarus);
29.8694, 6.55 (Bryukhanov);
29.879, 7.3 C (J. Shears, Cheshire, UK);
29.904, 5.6 CR (D. Buczynski, Portmahomack, UK; via CBET 4515);
29.9135, 6.5 (V. Perekhrest, Ukraine);
29.9301, 6.537 V +/-0.037 (I. Miller, Swansea, UK);
29.9375, 6.5 (Uhrin);
29.9424, 7.488 B +/-0.088 (Miller);
29.9424, 6.4 (J. Toone, Shrewsbury, UK);
30.0410, 6.3 (J. O'Neill, Topsfield, MA);
30.0431, 6.8 (L. Shotter, Uniontown, PA);
30.0611, 6.5 (C. Chiselbrook, Canton, GA);
30.0955, 6.6 (S. Koontz, Houston, TX);
30.1007, 6.6 (C. Maloney, Helena, AR);
30.1111, 6.5 (H. Smith, East Lansing, MI);
30.116, 7.65 B (S. Kiyota, Kamagaya, Japan, remotely with 0.25-m f/3.4 astrograph + SBIG ST-10XME CCD (T5, iTelescope.NET at Mayhill, USA; via CBET 4515);
30.116, 6.73 V (Kiyota, via CBET 4515);
30.116, 5.23 Ic (Kiyota, via CBET 4515);
30.8167, 6.9 (G. Murawski, Suwalki, Poland);
30.8333, 6.9 (A. Tsvetkov, Zavolzhye, Russian Federation);
30.8736, 7.2 (M. Muciek, Kolobrzeg, Poland);
30.8743, 7.0 (A. Glez-Herrera, Ferrol, Spain);
30.8785, 7.0 (J. Ribeiro, Esposende, Portugal);
30.8799, 7.1 (A. Correia, Esposende, Portugal);
30.8903, 7.1 (Toone, via baavss-alert);
30.9028, 7.1 (Ribeiro);
30.9035, 7.1 (Correia);
30.9063, 7.1 (Glez-Herrera);

Charts: Charts with a comparison star sequence for V392 Per maybe created using the AAVSO Variable Star Plotter (VSP) and the name V392 Per. Observers need to be aware of a magnitude 15.0 star 8.5" to the North of the variable.

Submit observations: Please submit observations to the AAVSO International Database using the name V392 PER.

AAVSO Forums: V392 Per is the topic of the AAVSO Time Sensitive Alerts forum thread
https://www.aavso.org/tcp-j044321304721280-v392-nova-eruption-62-mag-0
and the AAVSO Novae forum thread
https://www.aavso.org/tcp-j044321304721280-v392-nova-eruption-62-mag

Notes:
a. The object was designated TCP J04432130+4721280 when the report of a possible nova was posted to the IAU Central Bureau for Astronomical Telegrams Transient Object Confirmation Page (TOCP). It was later determined that this object was the CV (UG-type dwarf nova) V392 Per. Information in this Alert Notice taken from CBET 4515 is noted as such. Other information was sent to the AAVSO via submissions to the AAVSO International Database, posts to the AAVSO forums, and emails.

b. The dwarf nova (UG) range of V392 Per was V = 14.1-16.9. Observations in the AAVSO International Database show bright dwarf nova outbursts of V392 Per in:
 - March (or earlier) 2013: max mag V=14.1 on ~Mar. 20; beginning of outburst unknown but at V=14.637(25) on March 5 (M. Simonsen, Imlay City, MI); return to quiescence unknown but at V=14.632(26) on April 23 (G. Sjoberg, Duxbury, MA); and
 - January 2016: max mag V=13.6 on ~Apr. 1; beginning of outburst ~Jan. 4 at V=15.945(44) (Simonsen); return to quiescence unknown but at V=14.513(48) on Apr. 27 (S. Johnston, Warrington, Cheshire, UK).

c. P. Schmeer (Saarbruecken-Bischmisheim, Germany) writes that "the ASAS-SN Sky Patrol recorded a dwarf nova outburst with a very slow (GK Per-like) rise in 2016 February/March....the very slow rise to outburst maximum indicates a long orbital period." He also reports V392 Persei is located 6 degrees WNW of alpha Aurigae (Capella).

d. Position end figures
- D. Buczynski (Portmahomack, UK, 2018 Apr. 29.9042 UT): 21.39s, 25.9"
- S. Kiyota (Kamagaya, Japan, 2018 Apr. 30.116 UT, via CBET 4515): 21.36s, 26.18"

e. Images
- D. Buczynski (Portmahomack, UK, 2018 Apr. 29.9042 UT): https://britastro.org/node/13057

Congratulations to Yuji Nakamura on his latest discovery!

This AAVSO Alert Notice was compiled by Elizabeth O. Waagen.
----------------------------------
SUBMIT OBSERVATIONS TO THE AAVSO

Information on submitting observations to the AAVSO may be found at:
https://www.aavso.org/webobs

ALERT NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION

An Alert Notice archive is available at the following URL:
https://www.aavso.org/aavso-alert-notices-for-observing-campaigns-and-discoveries

Subscribing and Unsubscribing may be done at the following URL:
https://www.aavso.org/aavso-alert-notice-subscribe

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Offline Danijel

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« Odgovori #307 u: 02.05.2018. u 17:46:15 sati »
Jučer sam ju vrebao ali mi oblaci nisu dozvoljavali ništa. Danas ću isto pokušati ali se eto, opet naoblačilo. [55*

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« Odgovori #308 u: 06.05.2018. u 21:52:07 sati »
Napokon vedro, nova V392 Persei se upravo snima iz zvjezdarnice Apollo. Slika je jasna, sve se dobro vidi. :106: [71*

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« Odgovori #309 u: 06.05.2018. u 23:15:00 sati »
Po prvi put snimio sam ju 3. svibnja. Nisam imao force vući van čitav setup teleskopa i usjeveravati ga po posve neizvjesnom ili više-manje oblačnom vremenu.
Fotkao sam teleobjektivom 70-210mm sa stalka, kraće žarišne do 135mm i ekspozicije do 3s (ISO 1600).
Fotkanje sam ponovio večeras.  :sesir:
« Zadnja izmjena: 06.05.2018. u 23:18:49 sati od galileo »
Ivica Skokić: SUNČANI SATOVI U HRVATSKOJ
http://www.celestialscenes.com/sundials/index.php?location=Home