Маяки Вселенной - переменные звёзды (variable stars) ..

[Olegus]

to Silvester
желательно для интересных звёзд указывать тип переменности (класс).

[Silvester]

sigma Ursae Majorids (SIM), with number 677 209P/Linear annually in the period June 6-14

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U UMi 141720 +664740 8.2 12.0 330.92 0.50 0.978 - max ~ 1.06.2014
U Cas 004621 +481440 8.4 14.8 277.19 0.44 0.962 - max ~ 5.06.2014
R Vir 123830 +065918 6.9 11.5 145.63 0.50 0.91 - max ~ 7.06.2014
W Her 163512 +372043 8.3 13.5 280.03 0.45 0.952 - max ~ 8.06.2014
o Cet 021921 -025827 3.4 9.3 331.96 0.38 0.932 - max ~ 17.06.2014
R Boo 143712 +264411 7.2 12.3 223.4 0.46 0.863 - max ~ 25.06.2014
S CMi 073243 +081905 7.5 12.6 332.94 0.49 0.902 - max ~ 27.06.2014
T Her 180906 +310117 8.0 12.8 164.98 0.47 0.784 - max ~ 30.06.2014

W CrB 161525 +374744 8.5 13.5 238.4 0.45 0.877 - max ~ 4.07.2014
R Dra 163240 +664517 7.6 12.4 245.6 0.45 0.871 - max ~ 7.07.2014
R CMi 070843 +100125 8.0 11.0 337.78 0.48 0.879 - max ~ 16.07.2014
TU And 003223 +260146 8.5 12.5 316.77 0.48 0.866 - max ~ 17.07.2014
T Cam 044009 +660849 8.0 13.8 373.2 0.47 0.884 - max ~ 18.07.2014
R Ser 155042 +150802 6.9 13.4 356.41 0.41 0.859 - max ~ 24.07.2014
V Cnc 082143 +171706 7.9 12.8 272.13 0.40 0.794 - max ~ 31.07.2014
X Cam 044542 +750604 8.1 12.6 143.56 0.49 0.608 - max ~ 31.07.2014

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http://astro.berkeley.edu/bait/publi...4/sn2014J.html

C/2013 V1 (Boattini), К-1, К-1, M-1, #72, #1, #1, #1
#13


Jan 05 - Comet 209P/LINEAR At Opposition (0.949 AU)
May 06 - Comet 209P/LINEAR Perihelion (0.969 AU)
May 29 - Comet 209P/LINEAR Near-Earth Flyby (0.056 AU)


209P/LINEAR (P/2004 CB, P/2008 X2), К-1, К-2, M-1, #1867, #61, #13, #6
#13

малоизвестная комета перигелий в начале мая 2014 и, две недели спустя
24-ого мая Земля через поток кометы 209P/LINEAR, периодическая комета, обнаруженная в 2004. Астрономы от НАСА и России оценивают, что ливень метеора (209P-иды) мог произвести 100 – 400 метеоров в час, но мог вспышка к по 1000 метеоров в час. Эти числа - оценки, но ожидают обильные метеоры и возможно драматический вид 24-ого мая, почти новая Луна обеспечит хорошие рассматривающие условия.

#1243

Puppid-Velids (PUP) Puppids-Velids сomplex max 7.12 RA123° Dec -45° (1) RA128° Dec -45° (2) λ 255° V 40 r 2.9 Z 10

Sigma Puppids II (SPU) Puppids-Velids сomplex max 6.12 RA102° Dec -45°

33.60 PPU pi Puppids
202.70 GPU October gamma Puppids
223.00 RPU rho Puppids
253.70 SPU sigma Puppids
254.00 PUV Puppid-Velids I Complex
254.70 ZPU zeta Puppids
255.00 PUP gamma Puppids
256.30 PVE b Puppids
270.70 TPU tau Puppids
290.70 PIP January pi Puppids
296.00 VEL Puppid-Velids II Complex

Пуппиды-Велиды / Puppid-Velids (PUP) Комплекс Пуппиды-Велиды / / Puppid/Velids сomplex / Puppid-Velids complex ..

Метеорный поток действующий на протяжении ноября и декабря, не имеющий выраженного радианта и состоящий из целого комплекса (~10) самостоятельно действующих потоков в силу скученности и относительной слабости которых разделить на отдельные рукава не представляется возможным по прогнозам на 2012 год покажет свою активность на уровне 10 метеоров в час ..
Большая часть метеоров из этого комплекса, занимающего обширную территорию соседних созвездий: Корма (Puppis), Киль (Carina), Компас (Pyxis) и Паруса (Vela), довольно слабые, но встречаются и яркие болиды особенно вблизи максимума ..
В 2012 году максимум ожидается 6 декабря в 21:30 UTC при солнечной долготе λ⊙ = 255° ..
По другим оценкам максимум возможен 7 декабря 2012 года ..
Имеющие среднюю скорость (V = 40 км/сек) метеоры комплекса Пуппиды-Велиды доступны для наблюдения всю ночь, но лучшее время для их наблюдения предрассветные часы, когда радиант максимально высоко над горизонтом (~ 03:00 LST) ..
Радиант метеорного комплекса Пуппиды-Велиды расположен в 5° с веверо-востоку (NE) от Regor (Gamma Velorum) ..
По данным IMO - RA = 123°, Dec = -45°, по другим данным RA = 126°(08:08), Dec = -45°

Sigma-Puppids II SPU
Sigma-Puppids II (3) Nov 27-Dec 12 Dec 06 254.7 102 -45 5
Sigma-Puppids II SPU 27-nov - 12-déc 06-déc 253.7 102 -45 0.5 0 38 2.9

Puppid-Velids (PUP) are a vast complex of weak radiants located in the constellations of Puppis and Vela. Visual plots and photographic studies have revealed many radiants in this area during November and December. The combined strength of these radiants can produce a zenith hourly rate (ZHR) of ten at maximum, which occurs near December 7. Actual hourly rates will be much less unless you happen to be observing from the deep Southern Hemisphere. The center of this activity is currently located at 08:08 (124) -45. This position lies in western Vela, three degrees northeast of the second magnitude star Gamma Velorum. These meteors are best seen near 0300 LST when the radiant lies highest above the horizon in a dark sky. Observers located in the Southern Hemisphere have an advantage viewing this shower as the radiant will rise higher into their sky allowing more activity to be seen. At 40 km/sec. the Puppid-Velids produce meteors of average velocity.

Puppid-Velids (PUP) are a vast complex of weak radiants located in the constellations of Puppis and Vela. Visual plots and photographic studies have revealed many radiants in this area during November and December. The combined strength of these radiants can produce a ZHR of ten. Actual hourly rates will be much less unless you happen to be observing from the deep Southern Hemisphere. Activity from this source begins around December 1st. The center of this activity is currently located at 08:00 (120) -45. This position lies in western Vela, two degrees north of the second magnitude star Gamma Velorum. Peak rates occur near December 7. These meteors are best seen near 0300 LST when the radiant lies highest above the horizon in a dark sky. Observers located in the Southern Hemisphere have an advantage viewing this shower as the radiant will rise higher into their sky allowing more activity to be seen. Since the radiant lies low in the south for most northern hemisphere observers, meteors seen from north of the equator tend to be long in length and long-lasting. At 40 km/sec. the Puppid-Velids produce meteors of average velocity.


Meteors from comet 46P\Wirtanen? There is the possibility that we may be able to see meteor activity from comet 46P\Wirtanen as the Earth passes through several filaments of material produced when the comet passed through perihelion during the first half of the 20th century. This is strictly an evening display as any meteors from this source would have a radiant of 23:48 (357) +04. This position lies in western Pisces, just east of the circle of faint stars known as the “Circlet”. This area of the sky is best seen as it becomes dark as it culminates between 1800 and 1900 (6pm and 7pm) local standard time. The first of these encounters is with the material shed in 1947. The expected peak is at 06:21 Universal Time (UT) on December 11th. This corresponds to 22:21 (10:21pm) PST and 23:21 (11:21pm) MST on Monday evening December 10th. The radiant is too low for any activity to be seen in the eastern half of North America. The second encounter is material from 1941. This peak is expected to occur at 10:20 UT on December 12th. This is too late for North America but observers in Hawaii may be able to see some of this activity. The third encounter is produced from the 1934 return. This peak is expected to occur at 12:30 UT on December 13th. This timing favors the western Pacific area. The last possible encounter is produced by the 1927 return. This peak is expected to occur at 00:02 UT on December 14th. This corresponds to 19:02 (7:02pm) EST and 18:02 (6:02pm) CST on the evening of December 13th. This timing favors the eastern half of North America. If any meteors are produced from this source, they would be extremely slow.

Two new discovered comets are interesting for meteor showers:
C/2013 K1 Christensen with a MOID of 0.0591669 AU, it's a periodic
comet of around 80 years (a comet of halleid tipe) and it shall
accross the node around 54 days before the Earth, probably exist a
known meteor shower around 29 July with a very little ZHR linked at
this comet. perharps in 2013, but it's very very improbable, it can
occur an outburst.
C/2013 G5 Catalina, that has a period of more of 3 milion of years,
has a MOID of 0.0665776 AU, in that case the Earth shall be the
17 August at the node of the comet 24 day before the comet, too in
this case it's possible that exist a meteor shower linked at this
comet.
Best greetings.
Roberto Gorelli


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1 LD = 384 460 км

чтобы перевести километры в LD, надо имеющиеся километры разделить на 384.460
чтобы перевести LD в километры, надо имеющееся LD умножить на 384.460
чтобы найти сколько астроединиц в LD, надо имеющееся LD умножить на 384.460 и полученное число разделить на 150.000.000
чтобы найти сколько LD в астрономической единице, надо имеющееся а.е. умножить на 150 000 000 и разделить на 384 460


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Лунный Крест (Lunar X), Крест Пурбаха (Purbach Cross) или Икс Вернера (Werner X), иногда Крест Вернера (Werner Cross), Werner X, Lunar X, Purbach X, Blanchinus X
La Caille, Blanchinus, Purbach.

орбите на 2013 в отдаленном 404 261 километре.
Лунный апогей изменяется от 404 000 до 406 700 километров, и угловой диаметр Луны появляется 29.3’ около апогея против 34.1’ около перигея


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Сообщение от Olegus

to Silvester
желательно для интересных звёзд указывать тип переменности (класс).

в смысле, "мириды", "лириды-цефеиды"?