Simulated Planet X

Orion (sim.) · Injected slow, faint, red mover consistent with a distant Kuiper Belt / Planet Nine object.

RA: 05h40m48.00s
Dec: −12°30′00.0″
RA (deg): 85.20000
Dec (deg): -12.50000
Motion: 13.66″/yr
Fit T_eff: 60 K

102-band SPHEREx spectrum (SED)

5-second sweep from 0.75 to 5.0 µm — higher pitch means brighter infrared flux.

?ra=85.2&dec=-12.5&fov=1

Multi-Survey Cross-Match

Same coordinates and field of view in every survey. If the object sits on the crosshair in SPHEREx but is offset or missing in older images, it has moved — or it's new.

SPHEREx · 0.75–5.0 µm · 2025–26 (simulated)

DSS2 Optical image at RA 85.200 Dec -12.500 — **DSS2 Optical** · Visible · 1980s–1990s

2MASS image at RA 85.200 Dec -12.500 — **2MASS** · Near-IR J/H/Ks · 1997–2001

AllWISE image at RA 85.200 Dec -12.500 — **AllWISE** · Mid-IR 3.4/4.6 µm · 2010–2011

unWISE / NEOWISE image at RA 85.200 Dec -12.500 — **unWISE / NEOWISE** · W1+W2 · 2010–2020 coadd

CDS Portal SIMBAD IRSA Finder Chart

Historical images: CDS HiPS, falling back to NASA SkyView. SPHEREx tile is the app's simulated field.