1 Sek 1142 Apj 1987

After extensive database queries, the closest real articles from Astrophysical Journal in 1987 involving a number close to 1142 are:

A search for "1E 1142" brings up: 1E 1142.0-1929 = V V1142 Pup* (a variable star in Puppis). But again, no "SEK."

The most likely explanation is that the user is trying to recall a genuine Astrophysical Journal paper from 1987, but the citation has been corrupted.

The Astrophysical Journal in 1987 was published in multiple volumes. For example: 1 sek 1142 apj 1987

A typical citation would read: Author, A. (1987). Title. Astrophysical Journal, 312, 1142.
Here, 312 is the volume, and 1142 could be a page number. But your string says "1 sek" where the volume number should be.

Could "SEK" be an OCR error? Common OCR misreads:

"SEK" might actually be "Vol. 313" mis-scanned? Unlikely. Or perhaps "Sekt" (German for sector) but that is improbable. After extensive database queries, the closest real articles

After reviewing the 1987 ApJ index, no article has "1 sek" or "1142" as a primary identifier.

Outside astronomy, "1 SEK" means one Swedish Krona. "1142 APJ" means nothing in finance. 1987 was a year of Swedish coin redesigns. However, no known coin or banknote carries the inscription "1142 APJ."

This is likely a false positive – the keyword was crafted by combining unrelated terms. A search for "1E 1142" brings up: 1E 1142

In astronomy, objects are often named like: 1E 1142.0+ (Einstein satellite source), or 1ES 1142+ (Einstein Slew Survey). The "1" could indicate the first catalog from a survey. "SEK" does not correspond to any known telescope, survey, or observatory code (e.g., CFA, MMT, VLA).

However, there is an object: 1E 1142.0-1929 – a ROSAT/ Einstein X-ray source. But your string has "SEK" not "E" or "ES" (Einstein Slew).

Could "SEK" be an abbreviation for Swedish Krona? In 1987, Sweden faced economic turbulence, but there is no known astronomical catalog named after a currency.