View allAll Photos Tagged pa_290
PA_290 [10 points]
A horizontal ground red classic sized re-activated space invader in a well invaded street in the 11ème arrondissement of Paris. Never seen the original of this one, but the re-activation team of Paris made it possible to see, capture and scan this one.
Onscreen FlashInvaders message: LAST BUT NOT LEAST
All my photos of PA_290:
PA_290 (Close-up, May 2019)
PA_290 (Wide shot, May 2019)
Date of invasion: 25/06/2000
DELETED "ages ago"
RE-ACTIVATED April 2019
PA_290 [10 points]
A horizontal ground red classic sized re-activated space invader in a well invaded street in the 11ème arrondissement of Paris. Never seen the original of this one, but the re-activation team of Paris made it possible to see, capture and scan this one.
Onscreen FlashInvaders message: LAST BUT NOT LEAST
All my photos of PA_290:
PA_290 (Close-up, May 2019)
PA_290 (Wide shot, May 2019)
Date of invasion: 25/06/2000
DELETED "ages ago"
RE-ACTIVATED April 2019
155P/Shoemaker
2019-Dec-04 10:37:19 UTC
Exposure 864 secs R filter
Sky Motion 1.13"/min PA 100.6
ra 157.90586 dec +13.00510
Magnitude 16.47 +/- 0.05 R photAp 8.4 arcsec UCAC4
Coma 22 x 14 arcsec extended 292
Tail 7.1 arcmin PA 290
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R filter
Field of View: 23.9' x 16.0'
ArcSinh() stretched with Fits Liberator
Annotated with Photoshop
Astrometry and Photometry with Astrometrica
JPL Horizons Ephemeris Data:
JD = 2458821.942581018
t - T = +19.29137 days
RA 157.90541 Dec 13.00538
Delta = 1.409 au
r = 1.814 au
Elongation = 96.9 deg
Phase = 32.6 deg
PsAng = 291.2 deg antisolar direction
PsAMV = 286.8 deg -v direction
PlAng = +1.9 deg orbit plane angle
True Anomaly = 10.3 deg
Constellation: Leo (Leo)
155P/Shoemaker was 19 days past perihelion.
The tail widens further from the head.
The orbit plane angle is low with both tail vectors near the same position angle and a phase angle of 33 degrees.
This gives an edge-on view of the coma and tail along orbit plane in which the tail and coma appear thicker.
155P is a Jupiter family comet with an orbital period of 16.9 years. The current orbit shows the object moving between 1.8 au at perihelion to beyond Saturn to 11.4 au at aphelion.
It passed about 1.4 au from Saturn in March 1962 and has several approaches to Jupiter near 1.0 to 1.3 au which have only mildy perturbed its orbit. Several similar future approaches to Saturn and Jupiter are calculated in the future through 2200.
155P has a Jupiter MOID of 0.30 au and at some point in the distant future may have a very close encounter with either Saturn or Jupiter.
155P was discovered on 1986 Jan. 10 at magnitude 12 by C. S. and E. M. Shoemaker at Palomar observatory using the 0.46-m Schmidt telescope.
This was their third comet discovery named for them. The comet had passed perihelion before discovery on 1985-Dec-18 at 1.794 au.
A peak brightness of magnitude 13.5 was reported in early Feb 1986 and then faded in the following months.
Observers T. Oribe and A. Nakamura from Japan recovered the comet in September 2002 near 18th magnitude at its next return.
Peak brightness was reported near magnitude 14.5 in Nov-2002. Perihelion occured on 2002-Dec-14 at 1.814 au.
The comet faded afterwards and was observed through May 2003 when it reached 18th to 19th magnitude.
Images taken of 155P in 2002 and 2003 can be found in the SkyMorph moving target archive.
155P was first observed during its 2019 return at magnitude 18.5 on 2019-Sep-05.
155P experienced a 1.1 magnitude outburst in October 2019.
Toshihiko Ikemura and Hirohisa Sato reported total magnitude of 15.4 on 2019-Nov-01.
155P passed perihelion on 2019-Nov-15 at 1.802 au.
155P is located currently in the eastern morning sky constellation of Leo and should be near 15th magnitude.
It stays in Leo until June 2020.
Earth passes through the comet orbit plane on 2019-Dec-29.
Near this time, the comet vectors PsAng and PsAMV will be 180 degrees from each other.
This observing geometry results in a tail pointing away from the sun nearest the head with a bends toward the opposite or negative velocity direction.
Earth passes closest to the comet on 2020-Feb-10 at 1.109 au when it peaks in brightness possibly near magnitude 14.5 and begins fading.
References:
IAU Circular 4166, Periodic Comet Shoemaker 3 (1986a), Marsden, Brian G. (Jan 1986)
IAU Circular 4167, Periodic Comet Shoemaker 3 (1986a), Marsden, Brian G. (Jan 1986)
IAU Circular 4171, Periodic Comet Shoemaker 3 (1986a), Marsden, Brian G. (Jan 1986)
IAU Circular 4180, Periodic Comet Shoemaker 3 (1986a), Marsden, Brian G. (Feb 1986)
New periodic comet Shoemaker 1986a, BAA Circular. 656 (1986)
New short-period comet Shoemaker 3 (1986a), Kometnyj Tsirkulyar, No. 350 (1986)
Periodic comet Shoemaker 3 (1986a) Yamamoto Circ., Nos. 2052 and 2053 (1986)
MPEC 2002-R69 : COMET P/1986 A1 = 2002 R2 (SHOEMAKER 3), Marsden, Brian G. (Sept 2002)
IAU Circular 7969, Comet P/2002 R2 (Shoemaker 3), Green, D. W. E. (Sept 2002)
SkyMorph moving object tool, SkyMorph GSFC Home Page
Near-Earth Asteroid Tracking (NEAT) project images December 1995 - April 2007 PDS Small Bodies Node
Bauer, J. M. and Lawrence, K. J., Eds., Near Earth Asteroid Tracking V1.0. EAR-A-I1063-3-NEAT-V1.0. NASA Planetary Data System, 2013.
Nakano Note NK 3895, S. Nakano, 155P/Shoemaker 3, Nakano, Syuichi (Sept 2019)
Astronomer's Telegram, No. 13199, Bodewits, D.; Kelley, M. S. P.; Bolin, B; Ye, Q.; Gao, X.; Kugel, F.; ZTF Coll.; Outburst of 155P/Shoemaker 3 (Oct 2019)
MPEC 2019-V116 : Observations and orbits of comets, Williams, Gareth V., IAU Minor Planet Center (Nov 2019)
JPL Horizons Ephemeris and Small Body Database
Weekly Information about Bright Comets, S. Yoshida, (Nov 2019)
Minor Planet Observation database (2019)
JPL Horizons Ephemeris and Small Body Database
71P/Clark
2017-May-26 08:14:35 UTC
Stack 6 x 196 seconds
Sky Motion 0.68"/min P.A. 204.7
Magnitude 13.8 R aperture radius 10.25 arc sec Gaia DR1
Coma 83"x 68" extended PA 290 degrees
Short Dust Tail 2.5 arc minutes PA 300 degrees
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R band filter
Ephemeris data:
t - T = -34.85242 days
Delta = 0.611 AU
r = 1.621 AU
Elongation = 172.5 degrees
Phase = 4.7 degrees
PsAng = 306.2 degrees
PsAMV = 287.3 degrees
PlAng = 1.5 degrees
Constellation: Scorpius
Comet 116P/Wild
2016 May 15.64 UT: m1=12.5: CCD, Dia.=&2.0' Tail=&7.7' in PA 290 deg;
0.30-m f/5.5 Schmidt-Cassegrain + CCD; J. Oey, P. Camilleri, H. Williams & T. Prystavski
Blue Mountains Observatory, Q68 (Australia)
[Possible moonlight interference: Moon phase 0.69, alt. 1 deg]
88P/Howell
2020-Feb-29 10:16:14 UTC
Exposure 1189 secs R filter
ra 205.82207 dec -5.54371
Sky Motion 0.050"/min P.A. 330.1
Magnitude 16.91 +/- 0.04 R photAp 9.2 arcsec UCAC4
Coma diameter 12 arcsec extended PA 290
Tail 49 arcsec PA 293
Charles Bell H47 Vicksburg
JPL Horizons Ephemeris Data:
JD = 2458908.92794
t - T = -210.18936 days
RA 205.82168 Dec -5.54361
Delta = 1.650 au Earth distance
r = 2.443 au heliocentric distance
Elongation = 133.9 deg
Phase = 17.0 deg
PsAng = 286.4 deg antisolar direction
PsAMV = 294.1 deg -v direction
PlAng = -2.6 deg orbit plane angle
Constellation: Virgo (Vir)
True Anomaly = 256.3036 deg
Comet 88P/Howell was discovered 1981-Aug-29 at magnitude 15 by Ellen Howell at Palomar Mountain Observatory, California on a photographic plate exposed on the discovery date. 88P/Howell is a Jupiter Family comet with orbital period of 5.47 years.
Comet 88P/Howell returns to perihelion on 2020-Sep-26 when it is expected to brighten to near 9th magnitude for visual observers. Near perihelion, the comet exhibits a dust tail 10 to 30 arcminutes in length and a greenish gas coma.
88P was recovered in February and March 2019 near magnitude 21 by F51 Pan-STARRS 1, Haleakala and G96 Mt. Lemmon Survey.
43P/Wolf-Harrington
104 days past perihelion
Earth near comet orbit plane
Time Stamp: 2016 12 01, 11:30:47 UT
Motion: 1.18"/min in PA 127.0°
Stack 6 x 124 seconds
Magnitude 15.6 R aperture radius 10.25 arc sec (UCAC-4)
Coma 67" x 28" PA 290 degrees
Tail 8.4 arc minutes PA 290 degrees
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R band filter
Ephemeris data:
t - T = +103.76314 days
delta = 1.861 AU
r = 1.766 AU
Elongation = 69.0 degrees
Phase = 31.4 degrees
PsAng = 288.4 degrees
PsAMV = 288.5 degrees
PlAng = -0.1 degrees
Comet 43P was discovered 1924-Dec-22 by Max Wolf at Heidelberg, Germany. The comet discovered by Robert G. Harrington on 1951-Oct-04 was found to be the same as the comet discovered by Max Wolf in 1924 and became known as Wolf-Harrington. It is a Jupiter family comet with a 6.13 year orbital period. It has experienced close approaches to Jupiter which have shifted its orbit. It is predicted to pass very close to Jupiter in March 2019 which is expected to lengthen its perihelion distance, semi major axis and orbital period.
Comet 43P/Wolf-Harrington is located in the eastern morning sky in the constellation Crater.
74P/Smirnova-Chernykh
2018-Apr-20 04:12:12 UTC
stack 4 x 600 secs
Sky motion 0.19 "/min PA 264.5 deg
Magnitude 16.5 R aperture radius 10.25 arc sec UCAC4
Coma 29" x 22" extended pa 290 deg
Tail 1.6 arc minutes PA 290 deg
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R filter
Ephemeris data:
t - T = +83.37492 days
Delta = 2.760 AU
r = 3.549 AU
Elongation = 135.7 deg
Phase = 11.4 deg
PsAng = 22.1 deg
PsAMV = 293.0 deg
PlAng = -1.deg
Constellation: Leo
The positiion angle of the tail is near the PA of the negative velocity vector indicating heavier dust particles giving only a small curvature.
Comet 74P was discovered by T. M. Smirnova N. S. Chernykh, Crimean Astrophysical Observatory in March 1975 at magnitude 15 as a diffuse condensation with no tail on photographic plates exposed on March 4 and 16, 1975 (IAUC 1764).
Comet 74P peaked in brightness near its perihelion on 2018-Jan-26 at 3.536 AU. It returns approximately every 8.48 years orbiting between Mars and Jupiter. Its nuclear radius is given as 2.23 km in Comets II. Because its Jupiter Tisserand value is slightly above 3, this comet is classified dynamically as an Encke type comet T_jup = 3.007 a = 4.16 AU. An Encke-type comet, as defined by Levison and Duncan (TJupiter > 3; a < aJupiter). This comet experienced close enounters with Jupiter in Oct 1955 and 1963 and is expected to pass close to Jupiter again in 2021 and 2030.
Prior to October 28, 1955, the object was orbiting outside of the orbit of Jupiter. After the close approach on 1955-Oct-28 at 0.246 au, the object began orbiting inside the ellipse of Jupiter, i.e. capture of a centaur. The comet was discovered within a subsequent revolution in 1975 after its period and perihelion distance had been shortened. At time of discovery the object was about 5 months prior tp perihelion.
Discovery:
1975 Mar. 4.77955 = 1975-Mar-04 18:42:33
t - T = -154.454151389 days or about 5 months
r = 3.607 au
delta = 2.704 au
Elongation = 151.5 deg
Orbital Elements at Epoch 2442640.5 (1975-Aug-16.0) TDB
Reference: SAO/1975 (heliocentric ecliptic J2000)
ElementValue
e0.145380
q3.567154 au
tp2442630.7337
(1975-Aug-06.23370000)
node77.7511 deg
peri90.2336 deg
i6.6423 deg
43P/Wolf-Harrington
Approximately 93 days past perihelion with dust tail
Time Stamp: 2016 11 20, 11:28:03 UT
Motion: 1.33"/min in PA 125.2°
Stack 6 x 110 seconds
Magnitude 15.0 R Aperture radius = 10.25 arc sec (UCAC-4)
Afrho = 172 +/- 11 cm Aperture radius = 10,000 km (CMC-15)
Coma 20" x 15" extended PA 285 degrees
Tail 9.5 arc minutes PA 290 degrees
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R band filter
Ephemeris Data:
t - T = +92.78185 days
Delta = 1.888 AU
r = 1.697 AU
Elongation = 63.6 degrees
Phase = 31.4 degrees
PsAng = 286.8 degrees
PsAMV = 291.8 degrees
PlAng = -1.7 degrees
Ephemeris Data:
t - T = +92.78185 days
Delta = 1.888 AU
r = 1.697 AU
Elongation = 63.6 degrees
Phase = 31.4 degrees
PsAng = 286.8 degrees
PsAMV = 291.8 degrees
PlAng = -1.7 degrees
Comet 43P was discovered 1924-Dec-22 by Max Wolf at Heidelberg, Germany. The comet discovered by Robert G. Harrington on 1951-Oct-04 was found to be the same as the comet discovered by Max Wolf in 1924 and became known as Wolf-Harrington. It is a Jupiter family comet with a 6.13 year orbital period. It has experienced close approaches to Jupiter which have shifted its orbit. It is predicted to pass very close to Jupiter in March 2019 which is expected to lengthen its perihelion distance, semi major axis and orbital period.
Comet 43P/Wolf-Harrington is located in the eastern morning sky in the constellation Crater. Seiichi Yoshida observing from Japan reported comet 43P at magnitude 12.7 on November 4, 2016.
74P/Smirnova-Chernykh
229 days past perihelion
Time Stamp: 2010 03 16, 9:54:38 UT
Motion: 0.28"/min in PA 294.5°
Stack 5 x 600 seconds
Magnitude 16.3 R aperture radius 9.35 arc sec Astrometrica UCAC-4
Coma 24" x 17" extended PA 285 degrees
Tail 3.7 arc minutes PA 290 degrees
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R band filter
Ephemeris data:
t - T = +229.08938 days
delta = 2.775 AU
r = 3.645 AU
Elongation = 146.3 degrees
Phase = 8.7 degrees
PsAng = 279.4 degrees
PsAMV = 295.4 degrees
PlAng = -2.4 degrees
Earth below comet orbit plane
Comet 203P/Korlevic
2011-03-25T04:57:44
Time Stamp: 2011 03 25, 4:57:44 UT
Motion: 0.23"/min in PA 290.3°
Magnitude: 18.3 N
Tail: 2.66 arc min or 160 arc sec PA 294 deg
Tail is slightly curved meaning its a dust tail.
earth distance delta = 2.959 AU
solar distance r = 3.810 AU
elongation = 143.9 degrees
phase = 8.9 degrees
stack of 6 x 537 sec
0.3-m f/6.5 Schmidt-Cassegrain + CCD + Red filter
C. Bell H47 Vicksburg
Comet 49P/Arend-Rigaux
Time Stamp: 2012 01 04, 11:45:05 UT
Motion: 0.99"/min in PA 59.7°
Stack of 14 x 125 sec
Magnitude 16.5 N
Tail 7 arc min PA 290
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5
T 2011 Oct. 19.0846 TT MPC
q 1.423881 (2000.0) P Q
n 0.1465509 Peri. 332.7979 -0.0511147 -0.9569220 T = 2455853.58455 JDT
a 3.562955 Node 118.8749 +0.9653487 -0.1206745 q = 1.4238811
e 0.600365 Incl. 19.0497 +0.2559087 +0.2640795 Earth MOID = 0.46365 AU
P 6.73
earth distance delta = 1.084 AU
solar distance r = 1.656 AU
elongation = 106.3 degrees
phase = 34.8 degrees
0.3-m f/6.4 Schmidt-Cassegrain + CCD + Red filter
C. Bell H47 Vicksburg
Tjeldsundbrua er ei veibru som knytter Hinnøya til fastlandet. Hengebrua er en del av europavei 10/Kong Olavs veg. Den er 1007 meter lang, med hovedspenn på 290 meter. Seilingshøyden er 41 meter, og brua har i alt 32 spenn.
Comet 49P/Arend-Rigaux
Time Stamp: 2012 01 02, 11:16:14 UT
Motion: 1.01"/min in PA 62.2°
Stack 9 x 118 sec
Magnitude 16.6 N
Tail 5.5 arc minutes PA 290
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5
T 2011 Oct. 19.0846 TT MPC
q 1.423881 (2000.0) P Q
n 0.1465509 Peri. 332.7979 -0.0511147 -0.9569220 T = 2455853.58455 JDT
a 3.562955 Node 118.8749 +0.9653487 -0.1206745 q = 1.4238811
e 0.600365 Incl. 19.0497 +0.2559087 +0.2640795 Earth MOID = 0.46365 AU
P 6.73
earth distance delta = 1.091 AU
solar distance r = 1.645 AU
elongation = 104.8 degrees
phase = 35.3 degrees
0.3-m f/6.4 Schmidt-Cassegrain + CCD + Red filter
C. Bell H47 Vicksburg
Comet 246P/2010 V2 (NEAT)
Jupiter-family Comet
Time Stamp: 2012 02 20, 11:29:16 UT
Motion: 0.18"/min in PA 350.5°
Curved dust tail about 1 arc minute long (PA 290 degrees)
Stack 3 x 603s or ~ 30 minutes
Magnitude 15.5 N
earth distance delta = 2.656 AU
solar distance r = 3.374 AU
elongation = 129.7 degrees
phase = 13.0 degrees
0.3-m f/6.4 Schmidt-Cassegrain + CCD + Red filter
C. Bell H47 Vicksburg
Comet 230P/LINEAR on the morning of November 22, 2015 showed a short stubby tail . In my past observations, coma has been nearly circular with no tail.
Time Stamp: 2015 11 22, 9:40:44 UT
Motion: 0.58"/min in PA 354.0°
Stack of 6 x 231 second exposures.
Magnitude 14.9 R
Coma 22" x 17" PA 295 deg
Tail 0.7 arc minutes PA 290
C. Bell MPC code H47
0.3-m Schmidt-Cassegrain + CCD + R filter
t - T = +4.33804 days
Delta = 0.561 AU
r = 1.486 AU
Elongation = 145.9 degrees
Phase = 21.9 degrees
38P/Stephan-Oterma
2018-Nov-03 10:16:33 UTC
Sky motion 1.46 "/min PA 061.6 deg
Exposure 729 secs
Magnitude 13.2 R aperture radius 10.3 arcesc UCAC4
Magnitude 11.9 R aperture radius 42.3 arcesc UCAC4
Afrho R = 207 cm rho = 6858 km
Afrho R = 217 cm rho = 10000 km
Afrho R = 167 cm rho = 28163 km
Coma 36"x32" extended PA 280
Tail 0.9 arc min PA 290 deg
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R filter
Ephemeris data:
t - T = -7.53918 days
True Anomaly = 354.9 deg
Delta = 0.918 AU
r = 1.591 AU
Elongation = 112.8 deg
Phase = 35.1 deg
PsAng = 278.7 deg
PsAMV = 254.2 deg
PlAng = 11.9 deg
Constellation: Gemini (Gem)
Time Stamp: 2012 03 05, 9:15:17 UT
Motion: 0.29"/min in PA 315.7°
Magnitude 15.4 N
Stack 3 x 534s or ~ 27 minutes
Curved dust tail about 70 arc seconds long (PA 290 degrees)
0.3-m f/6.4 Schmidt-Cassegrain + CCD + Red filter
C. Bell H47 Vicksburg
Comet C/2014 A4 (SONEAR) about 9 days before perihelion
Time Stamp: 2015 08 27, 10:32:53 UT
Motion: 0.56"/min in PA 290.0°
Stack 6 x 210 seconds
Magnitude 16.2 R
Coma 14" x 9" PA 195 degrees
Tail 2.5 arc minutes PA 150 degrees
C. Bell H47
0.3-m Schmidt-Cassegrain + CCD + R filter
t - T = -9.41699 days
Delta 3.756 AU
r 4.181 AU
Elongation 108.1 degrees
Phase 13.3 degrees
PsAng 254.911 degrees
PsAMV 131.853 degrees
PlAng -11.00842 degrees
Comet C/2014 A4 (SONEAR) passes perihelion on September 5, 2015 at a solar distance of 4.180278 AU according to the latest orbit update posted by the Minor Planet Center on August 27, 2015 The comet shows a dust tail moderately curved toward the position angle of negative velocity vector plotted in the lower left as PsAMV from the JPL Horizons ephemeris service. The comet is beyond the orbit of Mars passing through the ecliptic plane near its perihelion point thus its apparent activity is expected to be mainly from non water volatiles such as carbon dioxide CO2 or carbon monoxide CO. At the comet's large distance and phase angle, the tail is approximately 1.78 million km in length using Vsekhsvyatskii's comet tail relation. The comet has a high retrograde inclination 121.4 degrees and is ascending through its ascending node as it passes perihelion at solar longitude of 29.7 degrees.
Comet C/2014 A4 (SONEAR) was discovered in images by Cristovao Jacques, Eduardo Pimentel, and J. Barros with the 0.30-m f/3 reflector of the Southern Observatory for Near Earth Research (SONEAR) at Oliveira, Brazil on January 12, 2014.
The latest orbit calculation for this comet gives 1/a original = +118 x 10^-6/AU indicating an origin out at 8500 AU near the inner edge of the classic Oort cloud indicating it is likely a returning comet.
Comet 67P/Churyumov-Gerasimenko Apr 5, 2015 with plotted dust tail syndynes
Measured tail point corresponds to syndyne with beta = 0.0009 and tau = 345 days
Finson-Probstein analysis of dust tail shows it is made up of large particles released approximately 345 days prior to the observation
with beta factor = 0.0009 or 9.0E-4
assuming solar radiation pressure efficiency coefficient = 1 and dust density = 1000 kg/m^3
dust particle radius (m): 6.3E-4 or about 630 microns
Generated syndyne for beta = 0.0009 gives position angle of 295.5 degrees for tail length of 11.8 arc minutes passes through measurement point.
Other syndynes fall above or below the observed and measured tail. Syndynes plotted include beta = 0.0003, 0.0005, 0.0009, and 0.0010
67P/Churyumov-Gerasimenko
Time Stamp: 2016 04 05, 04:54:06 UT
Coma 26" x 18" extended PA 290 degrees
Tail 11.8 arc minutes PA 296 deg
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R band filter