Discovery [1] | |
---|---|
Discovered by | K. Reinmuth |
Discovery site | Heidelberg Obs. |
Discovery date | 22 September 1928 |
Designations | |
(1101) Clematis | |
Pronunciation | /ˈklɛmətɪs/ [2] |
Named after |
κληματίς clēmatis ( flowering plant) [3] |
1928 SJ · 1928 WB 1963 TG1 · 1969 TG1 | |
main-belt · (
outer)
[1]
[4] Alauda [5] | |
Adjectives | Clematidian |
Orbital characteristics [1] | |
Epoch 4 September 2017 ( JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 89.17 yr (32,571 days) |
Aphelion | 3.4833 AU |
Perihelion | 2.9770 AU |
3.2302 AU | |
Eccentricity | 0.0784 |
5.81 yr (2,120 days) | |
151.11 ° | |
0° 10m 11.28s / day | |
Inclination | 21.424° |
201.98° | |
107.54° | |
Physical characteristics | |
Dimensions | 29.13±1.62 km
[6] 29.65±1.21 km [7] 33.765±0.809 km [7] 37.60 km (derived) [4] 37.86±1.4 km [8] |
6
h
[9] 8.5994±0.0006 h [9] 8.61±0.02 h [9] 12.68±0.01 h [10] 34.3±0.1 h [11] [a] | |
0.0788 (derived)
[4] 0.1124±0.009 [8] 0.127±0.019 [7] 0.190±0.023 [6] | |
C (assumed) [4] | |
10.10 [6] [8] · 10.50 [4] [7] · 10.6 [1] · 10.64±0.28 [12] | |
1101 Clematis /ˈklɛmətɪs/ is an Alauda asteroid from the outermost regions of the asteroid belt, approximately 37 kilometers in diameter. It was discovered on 22 September 1928, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany, and assigned the provisional designation 1928 SJ. [13] It was named for the flowering plant Clematis. The presumably carbonaceous asteroid has a relatively long rotation period of 34.3 hours.
Clematis is a member of the Alauda family ( 902), [5] a large family of typically "bright" carbonaceous asteroids and named after its parent body, 702 Alauda. [14]: 23 According to a different study, this object is also the namesake of the Clematis family, a small family of 5–16 asteroids hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination. [15]
It orbits the Sun in the outermost asteroid belt at a distance of 3.0–3.5 AU once every 5 years and 10 months (2,120 days; semi-major axis of 3.23 AU). Its orbit has an eccentricity of 0.08 and an inclination of 21 ° with respect to the ecliptic. [1]
The body's observation arc begins with its observation as 1963 TG1 at Goethe Link Observatory in October 1963, more than 35 years after its official discovery observation at Heidelberg. [13]
Clematis is an assumed carbonaceous C-type asteroids, [4] while the overall spectral type for members of the Alauda family is that of a somewhat brighter B-type. [14]: 23
In September 2009, a rotational lightcurve [a] of Clematis was obtained from photometric observations by American astronomers Brian Warner at the Palmer Divide Observatory, Colorado, and by Robert Stephens at GMARS ( G79, California. Lightcurve analysis gave a synodic rotation period of 34.3 hours with a brightness amplitude of 0.16 magnitude ( U=2), [11] which significantly differs from previously reported periods of 6 to 12.68 hours ( U=1/2/2/2). [9] [10] While not being a slow rotator, Clematis has a much longer period than that known for most other asteroids, and its small amplitude is indicative for a rather spheroidal shape.
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Clematis measures between 29.13 and 37.86 kilometers in diameter and its surface has an albedo between 0.1124 and 0.190. [6] [7] [8]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0788 and a diameter of 37.60 kilometers based on an absolute magnitude of 10.5. [4]
This minor planet was named after the flowering plant Clematis, a genus within the Ranunculaceae (buttercup or crowfoot family). The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H n.a.). [3]
Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between (1009) and (1200). This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants). [16]
Discovery [1] | |
---|---|
Discovered by | K. Reinmuth |
Discovery site | Heidelberg Obs. |
Discovery date | 22 September 1928 |
Designations | |
(1101) Clematis | |
Pronunciation | /ˈklɛmətɪs/ [2] |
Named after |
κληματίς clēmatis ( flowering plant) [3] |
1928 SJ · 1928 WB 1963 TG1 · 1969 TG1 | |
main-belt · (
outer)
[1]
[4] Alauda [5] | |
Adjectives | Clematidian |
Orbital characteristics [1] | |
Epoch 4 September 2017 ( JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 89.17 yr (32,571 days) |
Aphelion | 3.4833 AU |
Perihelion | 2.9770 AU |
3.2302 AU | |
Eccentricity | 0.0784 |
5.81 yr (2,120 days) | |
151.11 ° | |
0° 10m 11.28s / day | |
Inclination | 21.424° |
201.98° | |
107.54° | |
Physical characteristics | |
Dimensions | 29.13±1.62 km
[6] 29.65±1.21 km [7] 33.765±0.809 km [7] 37.60 km (derived) [4] 37.86±1.4 km [8] |
6
h
[9] 8.5994±0.0006 h [9] 8.61±0.02 h [9] 12.68±0.01 h [10] 34.3±0.1 h [11] [a] | |
0.0788 (derived)
[4] 0.1124±0.009 [8] 0.127±0.019 [7] 0.190±0.023 [6] | |
C (assumed) [4] | |
10.10 [6] [8] · 10.50 [4] [7] · 10.6 [1] · 10.64±0.28 [12] | |
1101 Clematis /ˈklɛmətɪs/ is an Alauda asteroid from the outermost regions of the asteroid belt, approximately 37 kilometers in diameter. It was discovered on 22 September 1928, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany, and assigned the provisional designation 1928 SJ. [13] It was named for the flowering plant Clematis. The presumably carbonaceous asteroid has a relatively long rotation period of 34.3 hours.
Clematis is a member of the Alauda family ( 902), [5] a large family of typically "bright" carbonaceous asteroids and named after its parent body, 702 Alauda. [14]: 23 According to a different study, this object is also the namesake of the Clematis family, a small family of 5–16 asteroids hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination. [15]
It orbits the Sun in the outermost asteroid belt at a distance of 3.0–3.5 AU once every 5 years and 10 months (2,120 days; semi-major axis of 3.23 AU). Its orbit has an eccentricity of 0.08 and an inclination of 21 ° with respect to the ecliptic. [1]
The body's observation arc begins with its observation as 1963 TG1 at Goethe Link Observatory in October 1963, more than 35 years after its official discovery observation at Heidelberg. [13]
Clematis is an assumed carbonaceous C-type asteroids, [4] while the overall spectral type for members of the Alauda family is that of a somewhat brighter B-type. [14]: 23
In September 2009, a rotational lightcurve [a] of Clematis was obtained from photometric observations by American astronomers Brian Warner at the Palmer Divide Observatory, Colorado, and by Robert Stephens at GMARS ( G79, California. Lightcurve analysis gave a synodic rotation period of 34.3 hours with a brightness amplitude of 0.16 magnitude ( U=2), [11] which significantly differs from previously reported periods of 6 to 12.68 hours ( U=1/2/2/2). [9] [10] While not being a slow rotator, Clematis has a much longer period than that known for most other asteroids, and its small amplitude is indicative for a rather spheroidal shape.
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Clematis measures between 29.13 and 37.86 kilometers in diameter and its surface has an albedo between 0.1124 and 0.190. [6] [7] [8]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0788 and a diameter of 37.60 kilometers based on an absolute magnitude of 10.5. [4]
This minor planet was named after the flowering plant Clematis, a genus within the Ranunculaceae (buttercup or crowfoot family). The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H n.a.). [3]
Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between (1009) and (1200). This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants). [16]